13. Enjinier Dis2010

USM TEAMS WON 1st and2nd PRIZES IN FLEXTRONICSECO CHALLENGE CONTEST2010

Kuala lumpur, 24 November -School of Materials & MineralResourses Engineering had send twoteams to participate in FlextronicsEco Challenge Contest that was heldat Crown Plaza Hotel, Kuala Lumpur.This contest was organized andsponsored by Flextronics TechnologySdn Bhd. The contest is aimed tonurture Initiative, ThoughtLeadership & Attitude towardsdesigning and developing original &environmental-friendly productsthat reduces carbon footprint.

Universiti Sains Malaysia (USM),Universiti Putra Malaysia (UPM) andUniversiti Teknologi Malaysia (UTM)took part in the contest by sendingtwo teams respectively. Team Afrom USM (Lim Shu Lee, LeowCheah Lee, Mohamad GhadaffyAffendy and Mohamad Afiq Misman)won the 1st prize worth of USD 5000for their project on “Reduce carbondioxide gas via photocatalytic reac-tor to produce hydrocarbon”.

Whereas USM team B (Mohd FirdausOmar, Yusriah Lazim, RatnamalarRajasingam and Patrick Lim WhyeKheong) won the 2nd prize of USD3000 for their project on“Eco-nanomembrane filter for water recycling’.Congratulations for both teams forcreating new history to our school.

GOLD MEDAL AT SEOULINTERNATIONAL INVENTION

FAIR 2010

Penang, 5 Disember – UniversitiSains Malaysia was among the topperforming teams at the SeoulInternational Invention Fair 2010(SIIF 2010), 2-5 December 2010 atSeoul, Korea. SIIF 2010 was organ-ized by Korea Invention PromotionAssociation (KIPA). The universitywon 3 gold, 1 silver and 2 bronze forall the six products displayed. One ofthe gold medals was for“EnviroPLAST- A Green andDegradable Plastic “ invented byProfessor Hanafi Ismail from Schoolof Materials and Mineral ResourcesEngineering. EnviroPLAST wasproduced using a cheap andbreakthrough technology to replacenon-degradable petroleum basedplastics.

ENJINIERBuletin Pusat Pengajian Kejuruteraan Bahan dan Sumber Mineral

Bulletin for the School of Materials and Mineral Resources Engineering Universiti Sains Malaysia

JIL. 12 BIL. 02 No. ISSN: 1511-5275 http://www.usm.my DIS 2010

1Buletin Enjinier, Dis 2010

USM teams at Flextronics Eco Challenge Contest 2010

USM teams at SIIF2010

THE 3RD REGIONALCONFERENCE

INTERDISCIPLINARY ONNATURAL RESOURCES &

MATERIALS ENGINEERING

Langkawi, Malaysia (25-26October 2010)

The school of Materials & MineralResources Engineering has organ-ized the 3rd Regional ConferenceInterdisciplinary on NaturalResources & Materials Engineering(3rd RC-NRM) , in Bayview Hotel,Langkawi, Malaysia from 25-26October 2010. This RegionalConference is one of the AUN/SEED-Net Phase II programs implementedfor its member institutions. Thetheme of the 3rd RC-NRM is“Sustainable Development in ASEANthrough Networking in NaturalResources and Materials” where aspecial focus was given on the eval-uation and value adding of the min-eral resources in the South East Asiaregion and also to enhance thedevelopment of EngineeringEducation especially in the field ofNatural Resources and MaterialsEngineering and networkingamongst participants from ASEANregion and Japan. The RC-NRM wasestablished to enhance the under-standing and cooperation in theinterdisciplinary fields amongresearchers and Engineers to shareexperiences and latest advance-ments in Science & Technology thatencompass the field of NaturalResources & Materials Engineeringas well as providing the academicplatform to establish this networkingwere universities, professional bod-ies, research institutes and industrymeet.

The first day of the conferencebegins with keynote speeches from3 invited Japanese professors fromKyushu University and University ofHokkaido, Japan, followed by anoth-er invited speaker from the SMMRE,Dr Cheang Kok Keong who gave hisplenary talk on day two. The RC wasofficiated by the Deputy ViceChancelor (Academic &International) of USM, Yang berba-hagia, Prof Ahmad Shukri and alsoattended by the Executive directorof AUN/SEED-Net Secretariat, ProfDr Prakit Tangtisanon and theExecutive director of ASEANFoundation, Dr Filemon A. Uriarte, Jrand delegates from the AUN/SEED-Net . The 3rd RC-NRM 2010 was asuccess with the conference receiv-ing about 45 oral papers and 35poster presenters from Malaysia,Burma, Indonesia, Thailand,Philippines, Singapore, Brunei andLaos presenting their researchresults, applications in variousaspects of Natural Resources andMaterials Engineering which coversall topics related to engineering as inGeology, Mining, Evaluation andValue adding of Resources, MineralProcessing and Resources Recycling,Energy, Environment, Ceramics,Metallurgy, Polymer and Naturalresources based products.

Buletin Enjinier, Dis 2010 2

Dr. Syed Fuad Saiyid Hashim

Prof. Zainal Arifin Ahmad

(Chief Editor)

Dr. Samayamutthirian Palaniandy

Mr. Mohd Nazri Idris

Prof. Hanafi Ismail

(Advisor)

Assoc. Prof. Dr. Azura A. Rashid

Assistant Editor

Editorial Board

Ms. Hasnah Awang

Ms. Habsah Haliman

Participants of RC-NRM 2010

KURSUS PENDEK“METALLURGY AND

PROCESSES”

16 Jun - B.BRAUN Malaysia telahmemberikan kepercayaan kepadakumpulan MRIG pusat pengajianuntuk mengendalikan kursus pen-dek bagi kakitangannya seramaisebelas orang. Kursus pendek berta-juk “Metallurgy and Processes” telahdijalankan selama dua hari berturut-turut bertempat di bilik seminarPPKBSM pada hari pertama dan dibilik seminar B.Braun padakeesokan harinya. Kursus ini mem-berikan maklumat-maklumat teoriberkenaan tajuk berkenaan kepadasemua peserta. Tenaga pengajaryang dilantik mengendalikan kursusini adalah Dr. Nurulakmal MohdSharif, Dr. Projjal Basu, Dr.Zuhailawati Hussain dan En. AhmadBadri Ismail yang juga bertindakselaku pengerusi dalam kursus ini.

Lanjutan daripada kursus berke-naan iaitu pada 27 dan 28September, kumpulan MRIG sekalilagi telah berjaya menganjurkankursus pendek bertajuk “Basic andAdvanced Metallurgy” khas untukkakitangan-kakitangan SouthernSteel Sdn. Bhd. Kursus dua hari initelah diadakan di Sunway HotelPulau Pinang. Pengajaran secarateori berkaitan kursus ini telah dik-endalikan oleh Dr. Nurulakmal, Dr.Sheikh Rezan, Dr. Anasyida, En.Ahmad Badri dan Dr. Zuhailawatiyang turut merangkap sebagaipengerusi kursus pendek kali ini.Jumlah peserta terlibat adalahseramai sepuluh (10) orang. Kedua-dua kursus ini telah berjayamendedahkan kepada para pesertaberkaitan isu-isu dan perkara-perkara asas penting yang terlibatdalam bidang metalurgi.

BENGKEL PENGENALANTERHADAP PENGUKURAN

KAKISAN

8 Julai – Pusat PengajianKejuruteraan Bahan Dan SumberMineral telah mengadakan satu lagi“in-house training” yang telah men-jadi amalan pusat pengajian sekianlama. Profesor Madya Dr. AhmadAzmin dan ahli jawatan kuasanyatelah melaksanakan satu bengkelbertajuk “Pengenalan TerhadapPengukuran Kakisan”. Bengkel inibertujuan memperkenalkan kepadajuruteknik Kejuruteraan Bahankaedah pengukuran dengan meng-gunakan peralatan terkini dalambidang kakisan iaitu dengan kaedahperisian komputer autolab potentio-stat. Selain itu, juruteknik juga

dilatih kaedah-kaedah penghan-taran laporan analisis sebagaipendedahan kepada penyediaanlaporan lengkap analisis yang dilak-sanakan.

Satu lagi “in-house training”telah berjaya diadakan oleh pusatpengajian melalui kumpulan MRIGialah “Workshop on basic metallur-gy” yang dipengerusikan oleh Dr.Zuhailawati pada 15-16 Disember.Bengkel ini dianjurkan buatjuruteknik Kejuruteraan Bahan danturut dibuka kepada para pelajarprojek tahun akhir dalam bidangmetalurgi serta pelajar ijazah tinggidalam bidang yang sama. Pengisianbengkel adalah melalui penyampa-ian secara teori berkaitan bidangberkenaan pada hari pertama sesidan seterusnya sesi praktikal padahari berikutnya.

SEMINAR PEMBELAUAN SINAR-X MENDAPAT SAMBUTAN RAMAI.

Selasa, 23 Nov 2010, KumpulanRekagraf yang diketuai oleh ProfRadzali dari PPK Bahan dan SumberMineral dengan kerjasama Bruker(Malaysia) Sdn. Bhd. telah men-gadakan Seminar PembelauanSinar-X : Analisis Kualitatif danKuantitatif yang disampaikan olehDr. Mohammad Hafizuddin HajiJumali dari Pusat Pengajian FizikGunaan, Fakulti Sains danTeknologi, Universiti KebangsaanMalaysia.Seminar yang dihadiri lebih daripada70 orang pelajar dan staf PPK Bahandan Sumber Mineral bermula padapukul 10 pagi dan ditangguh seketi-ka pada waktu makan tengahari dandisambung semula pada sebelahpetang. Perbincangan pada masapagi lebih menjurus kepada konseppenggunaan sinar-X, persediaansampel untuk dianalisis dan param-eter pengukuran yang digunakan.Perbincangan juga meliputi penggu-naan perisian EVA yang digunakanuntuk menganalisis sampel yangdiuji dengan mesin pembelauansinar-X.Topik perbincangan perisian EVAmendapat reaksi yang begitu positifdan hangat oleh para pelajar pusatpengajian ini kerana kebanyakanpelajar menggunakan perisian iniuntuk menganalisis sampel masing-masing. Dr. Mohammad Hafizuddinjuga menerangkan dengan lebih ter-perinci konsep penggunaan sesuatudata dalam perisian EVA, perkaitandengan sampel dan mesin sertapenambahbaikan yang bolehdilakukan pada seminar sebelahpetang.

Seminar ini telah memberi banyakmanafaat kepada pelajar selainperkongsian ilmu, secara tidak lang-sung membina jaringan pelajarkepada orang yang lebih mahir danini tidak terhenti dengan tertang-guhnya seminar. Diharap seminarseperti ini lebih banyak dilakukanuntuk melahirkan pelajar yang lebihberdaya saing dan berkemahirantinggi.


Kajian Kes Jurnal: “Journal of Alloysand Compound” dan “Journal of

Applied Polymer Sciences”

Artikel ini ditulis untuk membuat analisisterhadap jurnal-jurnal popular yangmelibatkan penyelidikan Bahan. Jurnalyang menjadi fokus ialah Journal of Alloyand Compound (JALCOM) dan Journal ofApplied Polymer Sciences (JAPS).Walaupun kita hanya fokus kepada nilaifaktor impak (IF) sahaja, tetapi data sta-tistiknya juga penting untuk merancangpenerbitan untuk mendapat petikan yangmaksimum.

Kajian Kes 1JALCOM terletak dalam kategori‘Metallurgy & Metallurgical Engineering’untuk penentuan IF 2009 oleh ISI Web ofKnowledge. Data untuk tahun 2007 dan2008 adalah seperti berikut:

i. Jumlah petikanJournal of Alloy and Compound (7,365petikan, #1)Acta Materialia (4,756 petikan, #2)Scripta Materialia (3,406 petikan, #3)

ii. Jumlah artikelJournal of Alloy and Compound (3,450artikel)Acta Materialia (1,265 artikel)Scripta Materialia (1,155 artikel)

iii. Faktor impakActa Materialia (IF = 3.760, #1)Scripta Materialia (IF =2.949, #2)Journal of Alloy and Compound (IF =2.135, #5)

Dari segi populariti (bedasarkanpetikan), JALCOM merupakan jurnal pal-ing popular dalam kategori ‘Metallurgy &Metallurgical Engineering’. Walaupun iasangat popular, tetapi tidak mampumembantu JALCOM untuk menaikkannilai IF.

Bagi kes ini, IF tidak bergantung semata-masa kepada jumlah petikan. Jumlahartikel yang dikeluarkan dalam tempoh 2tahun amat mempergaruhi nilai IF.Jumlah artikel dapat menurunkan JAL-COM ke bawah daripada Acta Materialiadan Scripta Materialia, sedangkanpetikan jurnal-jurnal ini rendah separuhdaripada JALCOM. Kajian Kes 2Untuk kajian kes kategori ‘PolymerScience’ dan khususnya kepada JAPS.Data untuk tahun 2007 dan 2008 adalahseperti berikut:

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DUA PELAJAR PPKBSMMENGHARUMKAN NAMA USM

DI LONDON

Pulau Pinang 20 Okt – Dua orangpelajar PPKBSM telah meng-harumkan nama USM dan negaraapabila memenangi dua pingat ematdalam Pameran British InventionShow di Alexandra Palace, Londonyang berlangsung pada 13 hingga16 Oktober 2010 lalu.

Nor Fasehah Zaaba, pelajarKejuruteraan Polimer (di bawahbimbingan Prof. Hanafi Ismail) telahmemenangi pingat emas, AnugerahKhas Berganda dan Hadiah KhasInovasi dari Rusia menerusi ciptaan-nya iaitu Biodegradable plastic filmmanakala Muhammad GhaddafyAffendy (di bawah bimbingan Prof.Madya Ahmad Azmin Mohamad),pelajar Kejuruteraan Bahan pulamemenangi pingat emas dan plat-inum untuk ciptaan beliau bertajukPolymer zinc-air batteries.

MAJLIS SAMBUTAN HARIRAYA 2010

7th October - Majlis SambutanHari Raya 2010 was one of the PGC’sprograms which will be held everyyear. This program was held as away to get close to each otherbetween PGC which is consisting ofvarious countries, races and reli-gions. The good understanding andbonding between postgraduates willensure a better quality of work andwill increase it to the outstandinglevel. In spite of that, it will be agood platform for foreign postgradu-ates to learn and know Malaysianculture especially the Malay specialcelebration day. This program washeld on at the foyer of PPKBSM. Theparticipants were PGC postgradu-ates which have been invited priorto the program day. About hundredof postgraduates were come to thisprogram with the multi races andcountries. At the end of the pro-gram, the participants seem to besatisfied. Hopefully this program willgenerate a good connection amongPGC postgraduates, hence, built abetter understanding and will pro-duce an outstanding cooperation.

PESTA TANGLUNG 2010

28hb Oktober - SempenaSambutan Pesta Tanglung 2010,Kelab Pelajar Ijazah Tinggi PPKBSMtelah menganjurkan satu majlis per-ayaan Pesta Tanglung di bilik semi-nar PPKBSM. Objektif-objektif yang

disasarkan adalah untuk mengisiagenda Kelab Pelajar Ijazah Tinggipada tahun 2010, menyambut PestaTanglung 2010 dan mengeratkanhubungan antara pelajar-pelajarijazah tinggi PPKBSM dan mem-perkenalkan budaya dan tradisimasyarakat Cina kepada pelajar-pelajar yang berasal dari luarnegara. Majlis sambutan PestaTanglung 2010 telah bermula padapukul lapan malam dengan pen-gacara bertugas pada malam terse-but ialah Lee Jo May dan Patrick LimWye Kheong. Seramai 64 orangpelajar ijazah tinggi telah meng-hadiri majlis ini dan majlis juga telahdiserikan lagi oleh kehadiran limaorang pensyarah pusat pengajianiaitu Profesor Hanafi Ismail, Prof.Madya Dr. Azizan Aziz, Prof. MadyaDr. Chow Wen Shyang, Dr. Yeoh FeiYee, dan Dr. Pung Swee Yong.

MISIF MOU with USM

Malaysian Iron and SteelIndustry Federation (MISIF) signed

a MOU with USM on 10-8-2010 atUSAINS. MISIF was represented byMr. Chow Chong Long, President ofMISIF and Chief Operating Officer ofSouthern Steel Sdn Berhad. USMwas represented by Prof. Lim KoonOng, Deputy Vice Chancellor,Division of Industry & CommunityNetwork and Prof Ahmad Fauzi MohdNoor, Dean School of Materials &Mineral Resources Engineering. Mostof the Metallurgy Research InterestGroup (MRIG) members were alsopresent. The signing of the MOU willallow close collaboration betweenMISIF and USM. The MOU is forduration of 5 years (2010 to 2015).Among the benefits the MOU willgive to USM is:

1. Collaboration in conductingtraining/short courses for MISIFmembers

2. R&D collaboration withMISIF partners

3. Support in the creation ofMalaysian Steel Institute.


Nor Fasehah (3 dari kanan) dan Muhammad Ghaddafy Affendy (paling kanan)

MISIF MOU with USM


List of SMMRE Postgraduate Students Viva July-December 2010

No. Student Nama / Date Degree Title of Thesis Name of Supervisor

1 Le Minh Hai

6 July 2010

M.Sc Preparation of in-Situ Carbides Reinforced Hybrid Copper-Based

Composite by Mechanical Alloying and its Characterization

Dr. Zuhailawati Hussain

Profesor Radzali Othman

2 Sunisa Khamsuk

13 July 2010

M.Sc Fabrication and Characterization of Porous Aluminium Alloy Encik Ahmad Badri Ismail


3 Warapong Krengvirat

14 July 2010

M.Sc Synthesis and Characterization of Bismuth Titanate and

Praseodymium Substituted Bismuth Titanate Produced by Low-

Temperature Self-Combustion Synthesis

Dr. Srimala a/p Sreekantan

Profesor Ahmad Fauzi Mohd Noor

4 Nguyen Xuan Thanh Tram

26 July 2010

M.Sc Synthesis of Carbonate-Subtituted Hydroxyapatite by a

Mechanical Activation Method



Houng A Loune Seng Pa Sith

29 July 2010

M.Sc Evaluation and Processing Optimization of Limestone from

Selected Resources for Industrial Applications



6 Suzi Salwah binti Jikan

19 August 2010

Ph.D Evaluation on Flow Behaviour of Polypropylene/Kaolin

Composites at High Shear Stress

Prof. Madya Azlan Ariffin

Dr. Zulkifli Mohamad Ariff

7 Noor Rehan Zainal Abidin

1 September 2010

M.Sc Anodization of Zirconium for the Formation of High-K Dielectric

Zirconia Thin Film

Prof. Madya Ir. Cheong Kuan Yew

Profesor Zainuriah Hassan

Prof. Madya Zainovia Lockman

8 Mohd Azam bin Mohd Adnan

24 September 2010

M.Sc Effect of Annealing Temperature and Catalyst on the Formation

of One-Dimensional Silicon Nanostructures Via Thermal

Evaporation Technique

Prof. Madya Sabar Derita Hutagalung

Prof. Madya Ir. Cheong Kuan Yew

9 Lim Shu Lee

28 September 2010

M.Sc Formation of Ceria Buffer Layer for YBa2Cu307-x

Superconductors


Profesor Zainal Arifin Ahmad

10 Sengphet Keokangdong

30 September 2010

M.Sc Development of Porous Sintered Alumina by a Sponge

Scaffolding Method and Forming Agent Using Natural

Bioresources



Dr. Yeoh Fei Yee

11 Mohd Al Amin Muhamad Nor

6 October 2010

Ph.D Penyediaan dan Pencirian Porselin Berliang Yang Disediakan

Melalui Kaedah Replika Span Polimer dan Mengaplikasikannya

Sebagai Bahan Teras Komposit Sandwic


Prof. Madya Hazizan Md Akil

12 Malek Ali Abdo Alsalem

8 October 2010

Ph.D Carbothermal Synthesis of Nanostructured Titanium Carbide by

Mechanical Activation

Dr. Projjal Basu


13 Rohani binti Abdul Majid

11 October 2010

M.Sc Preparation and Properties of Low Density Polyethylene

(LDPE)/Thermoplastic Sago Starch (TPSS)/Kenaf Composites

Profesor Hanafi Ismail

Dr. Razaina Mat Taib

14 Mohd. Zharif bin Ahmad Thirmizi

12 October 2010

M.Sc Characterization of Kenaf Bast Fibre Filled Poly (Butylene

Succinate) Composites: Mechanical, Water Absorption and

Weathering Properties

Profesor Zainal Arifin Mohd Ishak


15 Raphuel Saravana P. Babu

15 October 2010

M.Sc Production of Aggregates from Rock on Rock Vertical Shaft

Impact Crusher for Asphalt Pavement Application

Prof. Madya Hashim Hussin

Profesor Khairun Azizi Mohd Azizli

Profesor Meor Othman Hamzah

16 Norlin bin Nosbi

21 October 2010

M.Sc Studies on the Properties of Pultruded Kenaf Fiber Reinforced

Unsaturated Polyester Composites

Prof. Madya Hazizan Md Akil

Profesor Zainal Arifin Mohd Ishak

Prof. Madya Azhar Abu Bakar

17 Liong Wai Lap

22 October 2010

M.Sc Silicon Nanoparticles Synthesized Via Microemulsion with

Various Parameters


Prof. Madya Srimala Sreekantan

18 Nur Shafiza Afzan bt Sharif

28 October 2010

M.Sc Effect of Lanthanum Oxide (La2O3) Addition on the Properties of

Calcium Copper Titanate (CaCu3Ti4O12)



19 Mohd Firdaus bin Rusli

2 November 2010

M.Sc Silver and Copper Filled Polypropylene Composites Prof. Madya Mariatti Jaafar

Prof. Madya Azizan Aziz

20 Nik Nur Azza binti Nik Adik

15 November 2010

M.Sc Use of Hydro-Geophysics Streaming Potential (SP) Signals in

Evaluating Environmental Friendly Bio-Ecological Drainage

System (BIOECODS)

Prof. Madya Kamar Shah Ariffin

21 Tan Wai Kian

24 November 2010

M.Sc The Formation of ZnO Nanorod Arrays by Low Temperature

Hydrothermal Process on Seeded Substrates


Dr. Khairunisak Abdul Razak

22 Marwa Liwa KH Alfaris

24 November 2010

M.Sc Characterization of Molybdenum Disilicide Synthesized Through

Mechanical Activation

Dr. Projjal Basu


23 Nur Azam bin Badarulzaman

9 December 2010

Ph.D Pengaruh Adukan dan Kepekatan Partikel Silikon Karbida

Sebagai Penguat Terhadap Kelakuan Salutan Komposit Matriks

Nikel


Prof. Madya Ahmad Azmin Mohamad

24 Affendi Fitra bin Asral

20 December 2010

M.Sc Effects of Grinding Parameters in Mechanochemical Synthesis of

Ultrafine Cordierite

Dr. Hasmaliza Mohamad

Prof. Madya Srimala Sreekantan

25 Bui Duc Long

20 December 2010

Ph.D Fabrication of Cu-NbC Composite for Electrical Application by

Powder Metallurgy and High Pressure Torsion Methods



26 Che Nor Aiza binti Jaafar

21 December 2010

Ph.D Effects of Mg, Si, and Cu on Ageing Response of Dilute 6xxx

Series Aluminium Alloys

Prof. Madya Azmi Rahmat


27 Noorina Hidayu binti Jamil

27 December 2010

M.Sc Effect of Jet Mill Operating Parameters During the Production of

Ultrafine Limestone

Prof. Khairun Azizi Mohd Azizli

Dr. Samayamutthirian Palaniandy

28 Nik Noriman bin Zulkepli

28 December 2010

Ph.D Characterization and Properties of Styrene Butadiene

Rubber/Recycled Acrylonitrile-Butadiene Rubber (SBR/NBRr)

Blends

Prof. Hanafi Ismail

Prof. Madya Azura A Rashid

29 Tay Hong Kang

29 December 2010

M.Sc Natural Weathering and Hygrothermal Aging Studies of

Jute/Glass Fibres Reinforced Unsaturated Polyester Hybrid

Composites

Prof. Zainal Arifin Mohd Ishak



Visitors to the SMMRE (July to December 2010)

No. Date Name Organization Purpose

1. 22/7/2010 Kenzo Sahematsu Geological Survey of Japan, AIST Research Collaboration2. 22/7/2010 Ryohei Takahashi Kyushu University, Japan Research Collaboration

3. 9/8/2010 David Laurence UNSW Sydney, Australia Research Collaboration

4. 21/9/2010 Adilor Zhexenbek KAZNTY Research Collaboration

5. 21/9/2010 Omaron Edig KAZNTY Research Collaboration

6. 29/9/2010 Paul Harrison University of Leeds Research Collaboration7. 29/9/2010 Katy Sargeant University of Leeds Research Collaboration8. 29/9/2010 Judith laurie University of Leeds Research Collaboration

9 4/10/2010 Naoki Umemiya Japan International Cooporation Agency (JICA) Research Collaboration

10 4/10/2010 Yusuke Hasegawa International Development Center of Japan Research Collaboration

11 4/10/2010 Siriporn Rungrueangtanya JICA project for AUN/SEED.NET Research Collaboration

12 4/10/2010 Ms. Kanchana Patanasakdikul JICA project for AUN/SEED.NET Research Collaboration

13 27/10/2010 Koichiro Watanabe Kyushu University, Japan Research Collaboration

14 2/12/2010 Richard A. Williams University of Leeds Research Collaboration

15 6/12/2010 Sabah Abdulnoor University of Technology, Iraq Sabatical

PELANTIKAN BARU / LANJUTAN (KONTRAK/KUNJUNGAN/FELO PASCA) - TAHUN 2010

BIL NAMA JAWATAN TARIKH LANTIKAN

1 ANASYIDA BINTI ABU SEMAN @AHMAD PENSYARAH UNIVERSITI DS51 19/07/2010

2 SHEIKH ABDUL REZAN BIN SHEIKH ABDUL HAMID PENSYARAH UNIVERSITI DS51 03/09/2010

3 NORSHAHRIZOL BIN NORDIN JURUTEKNIK J17 21/09/2010

4 MOHAMAD SYAFIQ BIN MUSTAPA SUKRI JURUTEKNIK J17 01/11/2010

5 ZURATUL AIN BINTI ABDUL HAMID PENSYARAH UNIVERSITI DS45(SEMENTARA) 16/11/2010

TAMAT PERKHIDMATAN

BIL NAMA JAWATAN TARIKH BERSARA

1 QUAH KUNG HAI PEMBANTU TADBIR (P/O) N22 (BERSARA WAJIP) 01/11/2010

2 GNANASEGARAM A/L N.B. DORAI PEMBANTU MAKMAL C17 (TAMAT KONTRAK) 15/10//2010

3 PROJJAL BASU PENSYARAH UNIVERSITI DS51 (LETAK JAWATAN) 01/10/2010

KENAIKAN PANGKAT - TAHUN 2010

BIL NAMA JAWATAN TARIKH LANTIKAN

1 PROF. MADYA DR. ZULKIFLI BIN MOHAMAD ARIFF PENSYARAH UNIVERSITI DS54 11/07/2010

2 PROF. MADYA DR. AZURA BINTI A. RASHID PENSYARAH UNIVERSITI DS54 27/08/2010

3 PROF. MADYA DR. ZAINOVIA LOCKMAN PENSYARAH UNIVERSITI DS54 27/08/2010

4 PROF. MADYA DR. ZULKIFLI AHMAD PENSYARAH UNIVERSITI DS54 16/10/2010

5 ZURINA BINTI MD PAZIL PEMBANTU TADBIR (P/O) N17 KUP 01/08/2010

i. Jumlah petikanMacromolecules (12,028 petikan, #1)Polymer (5,352 petikan, #2)Journal of Applied Polymer Sciences(4,958 petikan, #3)

ii. Jumlah artikelJournal of Applied Polymer Sciences(4,121 artikel, #1)Macromolecules (2,650 artikel, #2)Polymer (1,498 artikel, #3)

iii. Faktor impakMacromolecules (IF = 4.539, #1)Polymer (IF = 3.573, #10)Journal of Applied Polymer Sciences (IF= 1.203, #38)

Bagi kes JAPS, sekali lagi faktor bilanganartikel memyebabkan IF jatuhmerudum. JAPS mengeluarkan artikelamat banyak iaitu sebanyak 4,121artikel. Bagi JAPS, secara purata artikeldi dalam jurnalnya hanya dirujuksebanyak 1.2 sahaja. Apabila kurangrujukan dan bilangan artikelnya sangatbanyak, IF akan menurun. Berbeza den-gan Macromolecules walaupun merekajuga menerbitkan banyak artikel, tetapisemuanya dipetik banyak kali.

Bagi jurnal yang berimpak tinggi bolehdikatakan semua kertas-jurnalnyadipetik. Malah ada yang dipetik lebihdaripada dua kali. Contohnya, dalamdua tahun (2007 dan 2008) setiapartikel yang diterbitkan dalam

Macromolecules dipetik hampir 4.5 kalioleh artikel-artikel lain.

Daripada kajian kes ini, dapat dilihatbahawa peranan petikan dan jumlahartikel amat penting. Pihak penerbittidak dapat mengawal jumlah petikan,tetapi mereka hanya boleh mengu-rangkan pembahagi dalam formula IFiaitu bilangan artikel. Apabila bilanganartikel dikurangkan, nilai IF akanbertambah. Untuk mengurangkan nilaiIF, editor akan menolak banyakmanuskrip. Bayangkan apabila editormemulakan ‘operasi kurangkan artikel’,manuskrip yang ditolak itu adalahmanuskrip kita!

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KEJURUTERAAN BAHAN

TAHUN 1

BONG PENG HOOI

CHANG CHI HSIUNG

FOO HUI SHIAN

LEE KAR CHUN

ONG BOON KIAN

ONG CHIN SIANG

TEW CHOON CONG

TOW MAN FERN

YONG JING HUI

TAHUN 2

CHANG HIN YEW

CHOW HON MUN

HO KAR YEE

LEE CHUN CHIEN

SEE CHUIN WERN

TAN PEI SHAN

TAHUN 3

GAN SHIAW MEI

GOH LEAN POH

GOH SUK MEI

GOOI WAN GYN

HAH JIA YEE

ISAAC KOH MING KUAN

KHOR CHOON PAU

LAI YEN XUE

LIM SHWU QIN

LIM YU MIN

LYE JIN HOON

ONG CHENG SHIAN

OOI CHIK LIANG

PHAN CHEE HONG

SOON VERN YEE

TAN FUI DO

TEO PAO TER

WONG POH WAI

WONG SOK HAN

TAHUN 4

ANG CHOON LI

E PEI SAN

FABIEN LEE ZHENG YEE

IBRAHYM BIN AHMAD

LEE CHIAR HOOI

LEE CHUN CHOONG

LEE SHIN PHAY

LIEW HENG FATT

LIEW MUI CHEE

NG HOOI CHIEN

NG YUEH FANG

SERENA SAW WEI PING

TAY SHU HONG

TEOH HUI CHIANG

KEJURUTERAAN SUMBER MINERAL

TAHUN 1

*TIADA PELAJAR*

TAHUN 2

*TIADA PELAJAR*

TAHUN 3

CHAN CHEE MENG

KHO CHUN MIN

KONG JEN WIN

ZAFIRAH ZAWANI BT ALI AZIZ

TAHUN 4

CHONG HUI YEE

DARREL LIM TIAN WEN

HAZWANI BT ANUAR

RAMADAN SHAKIR BIN ABDULLAH

KEJURUTERAAN POLIMER

TAHUN 1

LIM YEE HUI

TAN CHIN PING

THEN JIE WEN

TAHUN 2

ANDRE NINGKAN GADUAN

BANNARD A/L LAZIL

CHEW CHUN MUN

CHIA HOOI LENG

HO WAI MAY

KHOR TATT HWA

KWEE FUNG YUNN

LOW HONG FOOK

NOOR ADIANAERMA BINTI JAMIRIN

ONG HUN TIAR

TEO PEI SHAN

TAHUN 3

AU LI LIN

KUA HOONG SENG

YAP KAR FAY

TAHUN 4

ANG SHIN TING

CHUA KAI LIN

HUAM SOON KEE

KHOO HSU LI

LIM TSIU TJEN

SEE HONG YONG

SEOW PEI CHIN

TAN BOON KHOON

SENARAI SIJIL DEKAN SEMESTER II, SIDANG AKADEMIK 2010/2011SIJIL DEKAN

SCHOLARSHIP SPONSORED BY PERODUA

On October 20th 2010, Miss SitiNurhiatul Zukni, a first year engi-neering student from the School ofMaterials and Mineral ResourcesEngineering (SMMRE), was award-ed a scholarship sponsored byPERODUA. The scholarship wasmade exceptional as she was oneof only 9 students from all univer-sities throughout Malaysia to begiven the honor.

The scholarship recognition cere-mony was presided by YB.DatukDr.S. Subramaniam, HumanResources Minister of Malaysia atthe PERODUA Headquarters inRawang, Selangor. Our heartiestcongratulations to Miss SitiNurhiatul Zukni.

Miss Siti Nurhiatul Zukni

PERTANDINGANANUGERAH CABARAN

MULAKAN BISNESS ANDA(MBA) DENGAN ICT

KORIDOR UTARA (MBAKU)2010

Syabas kepada Saudara AbulKasim S.M.J Dulkaman, pelajarTahun Akhir, Pusat PengajianKejuruteraan Bahan Dan SumberMineral yang baru-baru ini telahberjaya meraih Naib JohanAnugerah Cabaran Mulakan BisnessAnda (MBA) dengan ICT KoridorUtara (MBAKU) 2010 KategoriMultimedia & Pemasaran InternetPada 20 November 2010.

Saudara Abul Kasim S.M.J

Dulkaman yang juga merupakanPengerusi Majlis Perwakilan PelajarKampus Kejuruteraan telahmenyahut cabaran Pertandinganyang dianjurkan ini dalam waktupeperiksaan akhir. Anugerah yangdipertandingkan menjadi rebutanhampir lebih daripada 50 usahawantempatan dan pelajar ipta yangmenyertai bengkel dan pertandin-gan ini. Hanya 2 anugerah yangdipertandingkan untuk setiap kate-gori. Pelajar yang berasal dari PulauPinang ini telah meraih naib johanhasil daripada kreativiti pemasaranyang ditunjukkan melalui ICTdalam mempromosikan gedungpakaian chef professional untukpasaran tempatan dan antara-bangsa.

Mengimbas kembali detik beliaumemulakan perniagaan kecil-kecilan sejak mula memasuki USMdaripada perniagaan kecil-kecilanmenjual roti sandwish di desasiswasehinggalah sekarang mendapattempahan barangan tekstil diNegara Brunei Darussalam. Beliaumemaklumkan tentang pengala-man sukar beliau di dalam pernia-gaan iaitu terpaksa membahagikanmasa belajar, masa untuk aktif diuniversiti dan masa untuk pernia-gaan.Sekalung Tahniah.


Designing the Next-Generation

of Scaffolds for Soft Tissue

Re-Growth

Abdul Hamid, Z.A.,a Blencowe, A.,bQiao, G.G.,b Stevens, G.,b Palmer,

J.,c Morrison, W.A.,c and Penington,T.,c

aSchool of Materials & MineralResources Engineering, Universiti

Sains Malaysia, EngineeringCampus, 14300 Nibong Tebal, Pulau

Pinang

bPolymer Science Group, TheDepartment of Chemical &

Biomolecular Engineering, theUniversity of Melbourne, Australia

cThe O’Brien Institute ofMicrosurgery, Melbourne Australia.

Introduction

Hydrogels have been extensivelyinvestigated for tissue engineeringapplications due to their uniqueproperties whereby they can forminsoluble 3D polymer networks thatswell in water and are able to retaina large amount of water within theirstructures, which is similar to theextracellular matrix (ECM) of manytissues.1 They have potential for bio-compatibility in physiological envi-ronments and may absorb thou-sands of times of their dry weight inwater.2 A major challenge has beenthe development of hydrogel scaf-folds that have high levels of poros-ity, whilst maintaining goodmechanical properties, as the poremorphology plays an important rolein promoting cell growth within thescaffold (Figure 1). The aim of thisstudy was to synthesise a biocom-patible and biodegradable hydrogelscaffold

with desirable properties for tissueengineering applications including;(i) good mechanical strength, (ii)non-toxic nature to biological envi-ronment and (iii) interconnected andappropriate pore sizes to promotecell proliferation.

Experimental Work

Highly porous and biodegradablehydrogels based on poly(ethyleneglycol) (PEG) and cystamine (Cys)were fabricated for the first-timeusing epoxy-amine chemistry andinvestigated as scaffolds for soft-tis-sue engineering. These hydrogelswere synthesised via cross-linking ofpoly(ethyleneglycol) diglycidyl ether(PEGDGE) monomer with a degrad-able cross-linker, cystamine(Scheme 1(a)). A secondary aminodifunctionalized PCL cross-linker wasincorporated into the network to actas ‘macromolecular springs’, thusimproving the mechanical strengthof the hydrogels (Scheme 1(b)).

To design the appropriate hydrogelswith desired pore morphology fusedsalt templates were employed(Scheme 1(c)). Not only do thefused salt templates provideimproved interconnectivity of theresulting pores in the hydrogels, butthey can be easily removed by dis-solution with water. Desired poresizes can be easily controlled byvarying the size of salt particles uti-lized in the templates.

Results and Discussion

Hydrogel properties such asmechanical strength (e.g.; compres-sive modulus (CM)), pore morpholo-gy and toxicity were investigated inorder to determine their suitabilityfor use as scaffold for tissue engi-neering applications. In vivo subcu-taneous implantations of thesehydrogels in rats were also conduct-ed to evaluate, if any, their foreign

body response (FBR).

The pore morphology of the hydro-gels was investigated using Cryo-SEM. It was found that there wereinterconnected macro and micropores within the hydrogels. The poresizes also correlated well with thesize of the salt templates employed(Figure 2).

The mechanical strength of thehydogels was investigated using anInstron Microtester 5848.Incorporation of the hydrophobiccross-linker lead to enhancedmechanical strength of the resultinghydrogels, with increases in CM of40-50 %.

Figure 3 below, shows that the CM ofthe hydrogels were comparable withthe modulus of various natural mus-cles. The CM of non-porous hydro-gels was in the range of vascularsmooth muscle cells (1-10MPa). TheCM for porous hydrogels was foundto be comparable with modulus ofcardiac cells (100-500kPa).3

In vivo subcutaneous implantationexperiments were conducted byimplantation of the hydrogels intorats. The implants were then left fora period of time (2, 8, 12 & 16weeks) before being removed. Theremoved implants were subsequent-ly histologically analysed (Scheme2).

From the 2 weeks results (Figure 4)it was evident that no major inflam-mation had occured. The formationof tissue and blood vessels withinthe interconnected pores of thehydrogels was observed. This indi-cates that the hydogels withimproved and interconnected poreshas promoted the regeneration ofnew tissues.

Article 1

Figure 1: Hydrogels as scaffolds for tissue engineering applications e.g., growth of replace-

ment organs Scheme 1: Hydrogel scaffold preparation

replacement organs

Conclusion

In conclusion, we have successfullysynthesised a novel biocompatibleand biodegradable cross-linkedhydrogel scaffolds with improvedmechanical properties, intercon-nected pore morphology withdesired pore sizes and non-toxic tobiological environments with limitedforeign body response.

References

(1) LaPorte, R. J. HydrophilicPolymer Coatings for MedicalDevices; Technomic PublishingCompany, Lancaster, PA, 1997.

(2) Allan, S. H. Annals of theNew York Academy of Sciences2001, 944, 62-73.

(3) Elizabeth A. Moschou, NitinChopra, Santoshkumar L. Khatwani,Jason D. Ehrick, Sapna K. Deo,Leonidas G. Bachas, Sylvia Daunert,Materials Research SymposiumProceeding, Vol. 952, 2006

Study of adsorption parameteron malachite green dye

removal using rubber seed coatbased activated carbon

Mohd Nazri Idrisa, Zainal ArifinAhmada, Mohd Azmier Ahmadb,*

aSchool of Materials and MineralResources Engineering, EngineeringCampus, Universiti Sains Malaysia,

14300 Nibong Tebal, Penang,Malaysia

bSchool of Chemical Engineering,Engineering Campus, UniversitiSains Malaysia,14300 Nibong

Tebal, Penang, Malaysia

ABSTRACT

In the present study, rubber seedcoat based activated carbon(RSCAC) was used as adsorbent formalachite green (MG) dye removalfrom aqueous solution. The effectsof dye initial concentration, contacttime, solution temperature and pHon MG adsorption onto RSCAC wereinvestigated. Results showed thatthe adsorption of MG wasfavourable at pH 6 whereas theadsorption uptake was found toincrease with increase in initial con-

centration, contact time and solu-tion temperature.

Keywords: Rubber seed coat;Activated carbon; Malachite green;

1. IntroductionAdsorption is a common techniqueused for dyestuff removal in wastewater treatment. With 1 ppm ofdyestuff amount in water [1], it’shighly visible and can be toxic toorganism’s community in water andwill directly contribute to water pol-lution. Several studies have beendeveloped to find suitable adsorbentto lower the dyestuff concentrationin water [2]. Among the othersmaterials, activated carbon hasbeen the most widely used asadsorbent. The sources of activatedcarbon were mostly come fromcharcoal, which normally expensive[3]. Recent years, numerous stud-ies on low-cost activated carbonfrom natural fiber or agricultureswaste have been documented suchas bamboo, coconut shell, pome-granate peel, rice husk, waste tirerubber, etc. The aims of this study were todevelop an activated carbon fromrubber seed coat (RSC) using phys-iochemical method with NaOH aschemical agents. An activated car-bon prepared under optimum condi-tions was investigated for its poten-


Figure 2: Cryo SEM images of macro and micro pore morpholo-gy of Cystamine/PEGDGE/PCL hydrogel prepared using a large

salt size template (300-600 μm)

Figure 3: Modulus of the hydrogels as compared to mod-ulus values of natural muscles and cells3

Scheme 2: In-vivo subcutaneous implantationprocedures ofthe hydrogels in rats

Figure 4: Cystamine/PEGDGE/PCL hydrogels stainedwith Hematoxylin and Eosin (H&E)

Article 2

tial to remove malachite green (MG)reactive dye from aqueous solution.The effects of different parameterssuch as contact time, initial dye con-centration, temperature and pHwere analyzed on the prepared acti-vated carbon.

2. Materials and methods

Activated carbon preparationThe rubber seed coat (RSC) wasobtained from a local rubber estate.RSC was firstly washed with waterand subsequently dried at 378 K for24 h to remove the moisture con-tent. The dried RSC was ground andsieved to the desired particle size of1-2 mm. The sieved sample wasloaded in a stainless steel verticaltubular reactor placed in a tube fur-nace. Carbonization of the dried RSCwas carried out at 973 K with heat-ing rate of 10 K/min under purifiednitrogen (99.99%) flown through atflowrate of 150 ml/min for 2 h. Thechar produced was mixed with sodi-um hydroxide (NaOH) pellets withNaOH:char impregnation ratio (IR)of 2.4. The mixture was then dehy-drated in an oven at 378 K for 24 hto remove moisture. Then the sam-ple was activated under the samecondition as carbonization to a finaltemperature of 1123 K. Once thefinal temperature was reached, thegas flow was switched over from N2to CO2 while activation was held for2.2 h. The activated product wasthen cooled to room temperatureunder nitrogen flow and thenwashed with hot deionized waterand 0.1 M HCl until the pH of thewashing solution reached 6.5-7.

2.2 Adsorbate

Malachite green, 4-[(4-dimethy-laminophenyl)-phenyl-methyl]-N,N-dimethyl-aniline supplied by Sigma-Aldrich (M) was used as an adsor-bate. Deionized water was used toprepare all solutions. MG has achemical formula of C23H26N2OHClwith molecular weight of 382.93g/mol.

2.3. Adsorption studies

For batch adsorption stud-ies, 0.2 g of RSCAC was mixed with100 ml aqueous dye solutions of 100mg/l initial concentration in 20 setsof 250 ml Erlenmeyer flasks. Themixture was agitated at 120 rpm at303 K. The pH of the solution wasnatural without any pH adjustment.The concentration of MG dye solu-tion was determined using a doubleUV-Vis spectrophotometer (UV-1800

Shimadzu, Japan) at it maximumwavelength of 615 nm. The percent-age removal at equilibrium was cal-culated by the following equation:Removal(%)=((C_o-C_e ))/C_o x1 0 0(1)Where Co and Ce are the liquid-phase dye concentrations at initialstate and at equilibrium (mg/l),respectively [4].

2.3.1. Effect of contact time andMG initial concentration

In order to study the effectof contact time and initial concentra-tion on the MG uptake, 100 ml of MGsolutions with initial concentration of25-250 mg/l were prepared in aseries of 250 ml Erlenmeyer flasks.0.2 g of the RSCAC was added intoeach flask covered with glass stop-per and the flasks were then placedin an isothermal water bath shakerat constant temperature of 303 K,with rotation speed of 120 rpm, untilequilibrium point was reached. Inthis case, the solution pH was keptoriginal without any pH adjustment.

2.3.2. Effect of solution tempera-ture on MG adsorption

The effect of solution tem-perature on the MG adsorptionprocess was examined by varyingthe adsorption temperature from303, 323 and 343 K by adjusting thetemperature controller of the waterbath shaker, while other operatingparameters such as volume of MG,activated carbon dosage and rota-tion speed were kept constant. Inthis case also, the solution pH for25-250 mg/l of MG initial concentra-tion was kept constant without anyadjustment.

2.3.3. Effect of solution pH on MGadsorption

The effect of solution pH onthe MG adsorption process was stud-ied by varying the initial pH of thesolution from 2 to 12. The pH wasadjusted using 0.1 M HCl and/or 0.1M sodium hydroxide (NaOH), andwas measured using pH meter(Model Delta 320, Mettler Toledo,China). The MG initial concentrationwas fixed at 200 mg/l with adsor-bent dosage of 0.2 g/100 ml. In thiscase, the solution temperature is at303 K. The MG percent removal wascalculated by using equation 1.

3. Results and discussion

3.1. Effect of contact time andMG initial concentration on adsorp-

tion equilibriumThe effect of contact time on theadsorption capacity of MG ions usingRSCAC at different initial concentra-tions is shown in Fig. 1. It can beseen that the adsorption capacity ofMG increased with contact time rap-idly and thereafter it proceeded at alower rate and finally attained equi-librium. This behavior suggests thatat the initial stage, adsorption takesplace rapidly on the external surfaceof the adsorbent followed by a slow-er internal diffusion process, whichmay be the rate-determining step[5]. In addition, the fast adsorptionat the initial stage also may be dueto the fact that a large number ofsurface sites are available foradsorption but after a lapse of time,the remaining surface sites are diffi-cult to be occupied. This is becauseof the repulsion between the solutemolecules of the solid and bulkphases, thus, make it take long timeto reach equilibrium. The adsorptionuptakes of MG at equilibriumincreased from 12.04 to 70.33 mg/gas the initial dye concentration wasincreased from 25 to 250 mg/L. Theinitial dye concentration provides animportant driving force to overcomethe mass transfer resistance of thedye between the aqueous and solidphases [6]. Therefore, at higher ini-tial dye concentration, the numberof ions competing for the availablesites on the surface of activated car-bon was high, hence, resulting inhigher MG adsorption capacity.

Also, the effect of initial concentra-tions of MG in the solution on thecapacity of adsorption onto RSCACwas studied and shown in Fig. 1. Itwas observed that an equilibriumtime of 3 h was needed for MG dyesolution with initial concentrations of25 mg/l and 50 mg/l to reach equi-librium. However, for initial concen-trations of 100-250 mg/l, longerequilibrium times of 22-24 h arerequired for the system to reachequilibrium. It is clear that theadsorption capacity of the dyes weredependent on the concentration ofthe dyes. Initially, adsorbate mole-cules have to first encounter theboundary layer effect. Then it has todiffuse from boundary layer filmonto adsorbent surface and finally, ithas to diffuse into the porous struc-ture of the adsorbent [7]. In fact,the ratio of the initial number of dyemolecules to the available surfacearea is low at lower initial concentra-tion compare to higher initial con-centration. Therefore, MG solutionswith higher initial concentrations would take relatively longer contact


time to attain equilibrium due to thehigher amount of MG molecules.Santhy and Selvapathy [8] found that the equilibrium time for theadsorption of Reactive Orange 12,Reactive Red 2 and Reactive Blue 4on coir pith-activated carbon was 4h for an initial concentration of 40mg/L. Leechart et al. [9] reportedthat for Red Reactive 141 with initialconcentration of 400 mg/L, theadsorption amount was gentlyincreased in the first 6 h and gradu-ally reached equilibrium within 24 h.This showed that the adsorption per-formance of the activated carbonprepared in this study is comparablewith the findings of previousresearchers where the adsorptioncapacity was increased with increas-ing the initial dye concentration end-ing to the saturation at higher dyeconcentrations.

3.2. Effect of solution tempera-ture on MG adsorption

Fig. 2 represents theadsorption capacity of MG ontoRSCAC at temperature of 303, 323and 343 K at various initial dye con-centrations (25-250 mg/L). Theresult shows that the equilibriumadsorption capacity of MG wasincreased while increasing the solu-tion temperature from 303 to 343 Kfor all initial dye concentrations. Thisincrease may indicates the increasedtendency of MG due to an increasein kinetic energy with increasingtemperature, and this situationleads to more adsorption on the sur-faces of RSCAC. In details, it wouldalso increase the mobility of the dyewith increasing temperature; hence,an increase in the number of mole-cules may also acquire sufficientenergy to undergo an interactionwith active sites at the surface [7].As the temperature increases, thepenetration of MG molecules inside the mesopores increased together

with the creation of new active sites and the decrease in the thickness of boundary layer surrounding theadsorbent make the mass transferresistance of adsorbate in theboundary layer decreases with tem-perature. Besides, it might also dueto the increase in chemical interac-tion between the adsorbate and surface functionalities of adsorbent.The results indicate that the adsorp-tion reaction of MG adsorbed byRSCAC is endothermic process.Similar trend was reported by Dizgeet al. [10] for the adsorption ofRemazol Brilliant Blue, Remazol Red133 and Rifacion Yellow red by flyash and the adsorption of C.I.Reactive Red 120 by activated oilpalm ash. However, other authorsnoted a diminution of the adsorptioncapacity with increasing tempera-ture, indicating the exothermicnature of the adsorption reaction[11].

3.3. Effect of solution pH on MGadsorption

The pH of the system exerts pro-found influence on the adsorptioncapacity of adsorbate molecule pre-sumably due to its influence on the

surface properties of the adsorbentand ionization or dissociation of theadsorbate molecule. Fig. 3 showsthe variations in the MG percentremoval at pH values of 2-12, tem-perature of 303 K and an initial dyeconcentration of 200 mg/l. From thefig. 3, it is evident that the percent-age removal of MG increased frompH 2 to 6 before it decreased gradu-ally until pH 12. The maximum per-centage removal of MG is observedat pH 6. Similar trend of pH effectwas observed for the adsorption ofMG onto ZnO fine powder [12], aswell as for the adsorption of DirectBlue 2B and Direct Green B on acti-vated carbon prepared from

Mahogany sawdust [13]. The highpercentage removal of the MG solu-tion at acidic pH may be attributedto the electrostatic interactionsbetween the positively chargedadsorbent and the negativelycharged MG dye anions. The posi-tively charged adsorbent is createddue to the hydrophobic nature of thedeveloped activated carbon whichled to adsorb hydrogen ions (H+)onto the surface of the carbon whenimmersed in water. The surfacecharge of adsorbent has become


Fig. 1. Effect of contact time on MG adsorption at various ini-tial concentrations.

Fig. 2. Effect of solution temperature on MG uptake atdifferent initial concentrations.

Fig. 3. Effect of solution pH on MG removal.

generally positively charged at lowerpH and negatively charged at higherpH. In addition, the positive chargein acidic medium and the negativecharge in basic medium develop onthe surface of adsorbent. Therefore,while the removal of anionic dye byadsorption increases at lower pH, itdecreases at higher pH. The adsor-bent surface would attract the nega-tively charged functional groupslocated on the reactive dyes andhence increases the adsorptioncapacity.

4. Conclusions

RSCAC was found to be suit-able for the removal of MG fromaqueous solution. Adsorption of MGwas found to increase with increasein contact time, MG initial concen-tration and solution temperature.The adsorption of MG on RSCAC wasfavored at low pH which is acidicmedium.

Acknowledgements

The authors gratefullyacknowledge the financial supportreceived in the form of researchgrants from Universiti SainsMalaysia for this project.

References

[1] El Qada E. N., Allen S. J. andWalker G. M. (2008). Adsorption ofbasic dyes from aqueous solutiononto activated carbons. ChemicalEngineering Journal, 135, 174-184

[2] Uzun I. and Guzel F. (2005).Rate studies on the adsorption ofsome dyestuff and p-nitrophenol bychitosan and monocarboxymethylat-ed(mcm)-chitosan from aqueoussolution. Journal of Hazardousmaterials, 118, 141-154.

[3] Kargi F. and Ozmlhcl S.(2005). Comparison of adsorptionperformances of powdered activatedcarbon for removal of turquoise bleudyestuff. Process Biochemistry, 40,2539-2544

[4] Langmuir I. The adsorptionof gases on plane surfaces of glass,mica and platinum. J Am Chem Soc1918;40:1361-403.

[5] Gialamouidis D,Mitrakas M, Liakopoulou-KyriakidesM. Equilibrium, thermodynamic andkinetic studies sp., Staphylococcusxylosus and Blakeslea trispora cells.J Hazard Mater 2010;182:672-80.

[6] Mohd Din AT, Hameed BH,Ahmad AL. Batch adsorption of phe-nol onto physiochemical-activatedcoconut shell. J Hazard Mater2009;161:1522-9.

[7] Hameed BH, Ahmad AA.Batch adsorption of methylene bluefrom aqueous solution by garlicpeel, an agricultural waste biomass.J Hazard Mater 2009;164:870-5.

[8] Santhy K, Selvapathy P.Removal of reactive dyes fromwastewater by adsorption on coirpith activated carbon. BioresourceTechnol 2006;97:1329-36.

[9] Leechart P,Nakbanpote W, Thiravetyan P.Application of ‘waste’ wood-shavingbottom ash for adsorption of azoreactive dye. J Environ Manage2009;90:912-20.

[10] Dizge N, Aydiner C,Demirbas E, Kobya M, Kara S.Adsorption of reactive dyes fromaqueous solutions by fly ash: Kineticand equilibrium studies. J HazardMater 2008;150:737-46.

[11] Sari A, Tuzen M. Removal ofmercury (II) from aqueous solutionusing moss (Drepanocladus revol-vens) biomass: equilibrium, thermo-dynamic and kinetic studies. JHazard Mater 2009;171:500-7.

[12] Ho YS. Second-order kineticmodel for the sorption of cadmiumonto tree fern: a comparison of lin-ear and non-linear methods. Water

Res 2006;40:119-25.[13] Malik PK. Dye removal fromwastewater using activated carbondeveloped from sawdust: adsorptionequilibrium and kinetics. J HazardMater 2004;B113:81-8.



No. Title Impact

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in Aqueous Solution, Journal of Alloys and Compounds, 2010:493, p699-706

2.1350

14 "Mechanochemical synthesis of nanostructured titanium carbide from industrial ferrotitanium" by M. Ali and P. Basu, Journal of Alloys and

Compounds, 491, 1-2, 2010, p.581-583

2.1350

15 "Mechanochemical synthesis of nanostructured TiC using TiO2 powders" by M. Ali and P. Basu, Journal of Alloys and Compounds, 500, 2010,

p.220-223

2.1350

16 Sreekantan, S., Wei, L.C. ,Study on the formation and photocatalytic activity of titanate nanotubes synthesized via hydrothermal method

(2010) Journal of Alloys and Compounds, 490 (1-2), pp. 436-442

2.1350

17 Johar Banjuraizah, Hasmaliza Mohamad, Zainal Arifin Ahmad, Thermal expansion coefficient and dielectric properties of non-stoichiometric

cordierite compositions with excess MgO mole ratio synthesized from mainly kaolin and talc by the glass crystallization method, Journal of Alloys

and Compounds, Volume 494, Issues 1-2, 2 April 2010, Pages 256-260

2.1350

18 Ahmad Zahirani Ahmad Azhar, Hasmaliza Mohamad, Mani Maran Ratnam, Zainal Arifin Ahmad, The effects of MgO addition on microstructure,

mechanical properties and wear performance of zirconia-toughened alumina cutting inserts, Journal of Alloys and Compounds, Volume 497,

Issues 1-2, 14 May 2010, Pages 316-320

2.1350

19 Hazman Seli, Ahmad Izani Md. Ismail, Endri Rachman, Zainal Arifin Ahmad, Characterization and thermal modeling of friction welded alumina-

mild steel with the use of Al 1100 interlayer, Journal of Alloys and Compounds 506 (2010) 703–709(ISI)

2.1350

20 Muhammad Azwadi Sulaiman, Sabar D. Hutagalung, Mohd Fadzil Ain, Zainal A. Ahmad, Dielectric properties of Nb-doped CaCu3Ti4O12 electro-

ceramics measured at high frequencies, Journal of Alloys and Compounds, Volume 493, Issues 1-2, 18 March 2010, Pages 486-492

2.1350

21 Lockman, Z., Sreekantan, S., Ismail, S., Schmidt-Mende, L., MacManus-Driscoll, J.L., Influence of anodisation voltage on the dimension of tita-

nia nanotubes (2010) Journal of Alloys and Compounds, 503 (2), pp. 359-364

2.1350

22 W. F. Lim, K. Y. Cheong, and Z. Lockman, “Physical Characterization of Post-deposition Annealed Metal-Organic Decomposed (MOD) CeO2

Spin-Coated on 4H-SiC,” Journal of Alloys and Compounds (Elsevier), vol. 497, pp. 195-200, 2010.

2.1350

23 Hussain Zuhailawati, Mohd Salihin Hassin and Mahani Yusoff, Microstructure and properties of copper composite containing in-situ NbC rein-

forcement: Effects of milling speed Journal of Alloys and Compounds. Vol. 489, Issue 2, (2010), pp. 369-374

2.1350

24 B. D. Long, R. Othman, M. Umemoto, H. Zuhailawati, Spark plasma sintering of mechanically alloyed in situ copper-niobium carbide composite

(2010) Journal of Alloys and Compounds, 505, (2) 510-515

2.1350

25 Mhd Noor Ervina Efzan, Mohd Sharif Nurulakmal, Kuan Yew Cheong, Tadashi Ariga, Ahmad Badri Ismail and Zuhailawati Hussain, Wettability

and strength of In-Bi-Sn lead-free solder alloy on copper substrate, Journal of Alloys and Compounds, Vol. 507, Issue 1, (2010) pp. 290-296

2.1350

26 Zaman, S.A.K., Palaniandy, S., Hussain, Z., Mechanochemical synthesis of nanostructured SiO2-SiC composite through high-energy milling

(2010) Journal of Alloys and Compounds, 502 (1), pp. 250-256.

2.1350

27 Azhar Abdul Halim , Hamidi Abdul Aziz , Megat Azmi Megat Johari , Kamar Shah Ariffin, Comparison study of ammonia and COD adsorption on

zeolite , activated carbon and composiite materials in landfill lecthe treatment. Desalination, Volume 262, Issues 1-3, 15 November 2010, Pages

31-35

2.0340

28 Johar Banjuraizah, Hasmaliza Mohamad, Zainal Arifin Ahmad, Densification and Crystallization of Non-Stoichiometric Cordierite Glass with

Excess MgO Synthesized From Kaolin and Talc" Journal of the American Ceramic Society (JACERS-27431.R3), J. Am. Ceram. Soc., 1–8

(2010),

1.9440

29 M. Jawaid, H.P.S. Abdul Khalil, A. Abu Bakar and P. Noorunnisa Khanam, 2010, Mechanical Performance of Oil Palm Empty Fruit bunches/jute

reinforced epoxy hybrid composites, Materials Science and Engineering: A, Volume 527, Issues 29-30, 15 November 2010, Pages 7944-7949

1.9010

30 Akil, H.Md., De Rosa, I.M., Santulli, C., Sarasini, F. 2010 Flexural behaviour of pultruded jute/glass and kenaf/glass hybrid composites monitored

using acoustic emission Materials Science and Engineering A 527 (12), pp. 2942-2950

1.9010

31 Vilay Vannaladsaysy, , M. Mariatti, Mitsugu Todo, Zulkifli Ahmad, Korakanh Pasomsouk, Improvement of microstructures and properties of

biodegradable PLLA and PCL blends compatibilized with a triblock copolymer, Materials Engineering Part A. 527 (2010) 6930–6937.

1.9010

32 M.F. Omar, H.M. Akil, Z.A. Ahmad, Static And Dynamic Compressive Properties Of Mica/Polypropylene Composites, Materials Science and

Engineering: A, Volume 528, Issue 3, 25 January 2011, Pages 1567-1576

1.9010

Publication In International Refereed Journal (Citation Indexed 2010)


Bil. Title Impact

Factor

33 H. J. Quah, K. Y. Cheong, Z. Hassan, Z. Lockman, F. A. Jasni, W. F. Lim, “MOS Characteristics of Metal-Organic Decomposed CeO2 Spin-Coated

on GaN,” Electrochemical and Solid-State Letters (The Electrochemical Society, USA), vol. 13, pp. H116-H118, 2010.

1.8370

34 Quah, H.J., Lim, W.F., Wimbush, S.C., Lockman, Z., Cheong, K.Y. Electrical properties of pulsed laser deposited Y2 O3 Gate Oxide on 4H-SiC

(2010) Electrochemical and Solid-State Letters, 13 (11), pp. H396-H398.

1.8370

35 Noorina Hidayu Jamil, Samayamutthirian Palaniandy Acid medium sonication : A method for the preparation of low density talc nano-sheets

Powder Technology, 200(1-2)87-90,2010

1.7450

36 K. Y. Cheong, J. Moon, H. J. Kim, W. Bahng, and N.-K. Kim, “Metal-Oxide-Semiconductor Characteristics of Thermally Grown Nitrided SiO2 Thin

Film on 4H-SiC in Various N2O Ambient, ” Thin Solid Films (Elsevier), vol. 518, pp. 3255 – 3259, 2010.

1.7270

37 N.Z. Noriman, Ismail H, A.A.Rashid, (2010), ‘The effects of epoxidized mnatural rubber (ENR-50) as a compatibilizer on properties of styrene

butadiene rubber/recycled acrylonitrile-butadiene rubber (SBR)/NBRr) blends’, Polymer Testing, 29, 2, p.200-208

1.6670

38 N.Z. Noriman, H. Ismail & A.A. Rashid (2010). Characterization of styrene butadiene rubber/recycled acrylonitrile-butadiene rubber (SBR/NBRr)

blends: The effects of epoxidized natural rubber (ENR-50) as a compatibilizer. Elsevier. Vol 29, pp 200-208, 2010

1.6670

39 H. Ismail & S.M. Shaari (2010) Curing characteristics, tensile properties and morphology of palm ash/halloysite nanotubes/ethylene-propylene-

diene monomer (EPDM) hybrid composites. Polymer testing. Vol 29 (7), pp 872-878, 2010

1.6670

40 Yen, K.S., Ratnam, M.M., Akil, H.M. (2010) Measurement of flexural modulus of polymeric foam with improved accuracy using moiré method,

Polymer Testing, 29 (3), pp. 358-368.

1.6670

41 W. F. Lim, K. Y. Cheong, and Z. Lockman, “Physical and electrical characteristics of metal-organic decomposed CeO2 Gate spin-coated on 4H-sili-

con carbide,”Applied Physics A

1.5950

42 M. H. Sayyad, M. Saleem, Kh. S. Karimov, M. Yaseen, M. Ali, K. Y. Cheong, A. F. Mohd Noor, "Synthesis of Zn(II) 5,10,15,20-tetrakis(4′-isopropy-

lphenyl) porphyrin and its use as a thin film sensor,” Applied Physics A-Materials Science & Processing (Springer), Vol. 98 pp.103-109, 2010

1.5950

43 S.G. Tan and W.S. Chow (2010). Thermal Properties of Anhydride-Cured Bio-Based Epoxy Blends, Thermal Analysis and Calorimetry, Volume

101, Number 3 / September, 20101051-1058

1.5870

44 S. S. Jikan • Z. M. Ariff • A. Ariffin, “Influence of filler content and processing parameter on the crystallization behaviour of PP/kaolin composites”,

Journal of Thermal Analysis and Calorimetry,(2010) 102 1011-1017

1.5870

45 Saidatulakmar Shamsuddin, Shamsul Baharin Jamaludin, Zuhailawati Hussain, and Zainal Arifin Ahmad, The effects of Al2O3 amount on the

microstructure and properties of Fe-Cr matrix composites, Metallurgical and Materials Transactions A VOLUME 41A, DECEMBER 2010, 3452 –

3457,

1.5640

46 Pung, S.Y., Choy, K.L., Evgeny, A.Vinogradov., Nadezhda, N.Novikova. and Vladimir, A.Yakovlev., 2010. Structural and Infrared analysis of ZnO

film and nanowires. J. Cryst. Growth 312:2220-2255

1.5340

47 Pung, S.Y., Choy, K.L. and Hou, X. 2010. Tip-growth mode and base-growth mode of Au-catalyzed ZnO nanowires by Chemical Vapour

Deposition technique J. Cryst. Growth 312:2049-2055

1.5340

48 Vilay Vannaladsaysy, M. Mariatti, Zulkifli Ahmad, Mitsugu Todo, Korakanh Pasomsouk, Effect of PEO-PPO-PEO Copolymer on the Mechanical

and Thermal Properties and Morphological Behavior of Biodegradable Poly (L-lactic acid) (PLLA) and Poly (Butylene Succinate-co-L-Lactate)

(PBSL) Blends, Polym. Adv. Technol. (2010)

1.5320

49 Zuhailawati Hussain, Ahmad Badri, Tadashi Ariga, The effects of welding parameters on the weldability of different materials using brazing alloy

fillers,Materials & Design, Vol. 31, Issue 7, ( 2010) pp. 3339-3345

1.5180

50 Ahmad Fauzi M.N., Uday M.B., Zuhailawati H., Ismail A.B. Microstructure and Mechanical Properties of Alumina-6061 Aluminum Alloy joined by

Friction Welding Materials & Design Vol. 31, Issue 2, (2010), pp. 670-676

1.5180

51 Norlin Nosbi, Hazizan Md Akil, Z. A. Mohd Ishak and A Abu Bakar, 2010, Degradation of compressive properties of pultruded kenaf fibre reinforced

composites after immersion in various solutions, Materials and Design, 31 (10), 4960-4964

1.5180

52 Nosbi, N., Akil, H.M., Mohd Ishak, Z.A., Abu Bakar, Degradation of compressive properties of pultruded kenaf fiber reinforced composites after

immersion in various solutions, Materials and Design 31 (10), pp. 4960-4964, 2010

1.5180

53 Omar, M.F., Md Akil, H., Ahmad, Z.A., Mazuki, A.A.M., Yokoyama, T. Dynamic properties of pultruded natural fibre reinforced composites using

Split Hopkinson Pressure Bar technique, Materials and Design 31 (9), pp. 4209-4218, 2010

1.5180

54 Abdul Khalil, H.P.S., Firoozian, P., Bakare, I.O., Akil, H.M., Noor, A.M. 2010 Exploring biomass based carbon black as filler in epoxy composites:

Flexural and thermal properties Materials and Design 31 (7), pp. 3419-3425

1.5180

55 Mohd Firdaus Omar, Hazizan Md Akil, Zainal Arifin Ahmad, A.A.M. Mazuki, Takashi Yokoyama, Dynamic properties of pultruded natural fibre rein-

forced composites using Split Hopkinson Pressure Bar technique, Materials & Design, Volume 31, Issue 9, October 2010, Pages 4209-4218

1.5180

56 Hussain Zuhailawati, Tan Chew Geok and Projjal Basu Microstructure and hardness characterization of mechanically alloyed Fe-C elemental pow-

der mixture Materials & Design Vol. 31, Issue 4 (2010) pp. 2211-2215

1.5180

57 H. S. Chin, K. Y. Cheong and K. Abdul Razak, “Review on Oxides of Antimony Nanoparticles: Synthesis, Properties and Applications, J Mater Sci

(2010) 45:5993–6008

1.4710

58 Chea Chandara, Etsuo Sakai, Khairun Azizi Mohd Azizli, Zainal Arifin Ahmad, Syed Fuad Saiyid Hashim, The effect of unburned carbon in palm oil

fuel ash on fluidity of cement pastes containing superplasticizer, Construction and Building Materials 24 (2010) 1590–1593

1.4560

59 W.L. Tham, W.S. Chow, Z.A. Mohd Ishak (2010). Simulated body fluid and water absorption effects on poly(methyl methacrylate)/hydroxyapatite

denture base composites,eXPRESS Polymer Letters Vol.4, No.9 (2010) 517–528

1.4520

60 Hazman Seli, Ahmad Izani Md. Ismail, Endri Rachman, Zainal Arifin Ahmad, Mechanical evaluation and thermal modelling of friction welding of

mild steel and aluminium, Journal of Materials Processing Technology, Volume 210, Issue 9, 19 June 2010, Pages 1209-1216

1.4200

61 F. Mirjalili, M. Hasmaliza, L. Chuah Abdullah (2010) Size-controlled synthesis of Nano α-Alumina Particles through the Sol-Gel Method Ceramics

International, 36, 1253–1257

1.3690

62 Uday, M.B., Ahmad Fauzi, M.N., Zuhailawati, H., Ismail, AB, Advances in friction welding process: a review. Science and Technology of Welding

and Joining, 2010. 15(7): p. 534-558.

1.3270

63 Araoyinbo, A.O., Ahmad Fauzi, M.N., Sreekantan, S., Aziz, A., A novel process to produce nanoporous aluminum oxide using titration technique to

prepare the neutral electrolyte (2010) Journal of Non-Crystalline Solids, 356 (20-22), pp. 1057-1060.

1.2520

64 Kusmono, Z.A. Mohd Ishak, W.S. Chow, T. Takeichi and Rochmadi (2010). Effects of Compatibilizers and Testing Speeds on the Mechanical

Properties of Organophilic Montmorillonite Filled Polyamide 6/Polypropylene Nanocomposites, Polymer Engineering and Science, (2010)

1.2480

65 A. Jamaludin, A.A. Mohamad, Application of liquid gel polymer electrolyte based on chitosan-NH4NO3 for proton batteries, Journal of Applied

Polymer Science 118 (2010) 1240-1243.

1.2030

66 W.L. Tham, W.S. Chow and Z.A. Mohd Ishak (2010). The Effect of 3-(Trimethoxysilyl) Propyl Methacrylate on the Mechanical, Thermal and

Morphological Properties of Poly(methyl methacrylate)/Hydroxyapatite Composites, Journal of Applied Polymer Science, 118, 218-228.

1.2030

67 Hanafi Ismail, Yamuna Munusamy, M. Mariatti, Chantara Thevy Ratnam (2010).The Effect of Trimethylol Propane Tetraacrylate (TMPTA) and

Organoclay Loading on the Properties of Electron Beam Irradiated Ethylene Vinyl Acetate (EVA)/Natural Rubber (SMR L)/Organoclay

Nanocomposites. Wiley Periodicals, vol 117, pp 865-874, 2010.

1.2030

68 Abu Bakar, M. B., Mohd Ishak, Z. A., Mat Taib, R., Rozman, H. D., Mohamad Jani, S. (2010), Flammability and mechanical properties of wood-

four filled polypropylene composites, Journal of Applied Polymer Science, 116, 2714-2722

1.2030


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69 Masara Idhamisa Mahadi and Samayamutthirian Palaniandy. (2010). Mechanochemical effect of dolomatic talc during fine grinding process in

mortar grinder. International Journal of Mineral Processing. 94. 172-179.

1.1960

70 Kusmono, Z.A. Mohd Ishak, W.S. Chow, T. Takeichi and Rochmadi (2010). Water Absorption Behavior of Different Types of Organophilic

Montmorillonite-Filled Polyamide 6/Polypropylene Nanocomposites, Polymer Composites, 31, 2, 195-202.

1.1940

71 Kusmono, Z.A. Mohd Ishak, W.S. Chow, T. Takeichi and Rochmadi (2010). Effect of Clay Modification on the Morphological, Mechanical, and

Thermal Properties of Polyamide 6/Polypropylene/Montmorillonite Nanocomposites, Polymer Composites, 31, 7, 1156-1167.

1.1940

72 R. Mat Taib, S. Ramarad, Z. A. Mohd Ishak and M. Todo. 2010. Properties of kenaf fiber/polylactic acid biocomposites plasticized with polyethyl-

ene glycol. Polymer Composites, 31:1213-1222.

1.1940

73 C.Y. Khor, Z.M. Ariff, F. Che Ani, M. Abdul Mujeebu, M.K. Abdullah, M.Z. Abdullah and M.A. Joseph, "Three-dimensional numerical and experi-

mental investigations on polymer rheology in meso-scale injection molding", International Communication in Heat and Mass Transfer, Vol 37, 131-

139, (2010)

1.1890

74 Y. L. Chiew and K. Y. Cheong, “Formation and characterization of SiOx nanowires and Si/SiOx core-shell nanowires via carbon-assisted growth,”

Physica E (Elsevier), Vol. 42, pp. 1338 – 1342, 2010.

1.1770

75 M. Khalil Abdullah, M. Z. Abdullah, M. Abdul Mujeebu, Z. M. Ariff, and K. A. Ahmad “Three-Dimensional Modelling to Study the Effect of Die-

Stacking Shape on Mould Filling During Encapsulation of Microelectronic Chips” , IEEE Transactions On Advanced Packaging, Vol. 33 (2), (2010)

1.1220

76 Hanafi Ismail, Razif Nordin, Zulkifli Ahmad & Azura Rashid (2010). Processability and miscibility of linear low-density polyethylene/ poly(vinyl alco-

hol) blends: In situ compatibilization with maleic acid. Iran Polymer and Petrochemical Institute, vol 19, pp 297-309, 2010

1.0720

77 Y. H. Wong and K. Y. Cheong, “ZrO2 Thin Films on Si Substrate,J Mater Sci: Mater Electron (2010) 21:980–993 1.0200

78 Quah, H.J., Cheong, K.Y., Hassan, Z., Lockman, Z. Investigation of forming-gas annealed CeO2 thin film on GaN (2010) Journal of Materials

Science: Materials in Electronics, pp. 1-9.

1.0200

79 Chan K.L., Mariatti M., Lockman Z., Sim L.C., Effect of Ultrasonication Medium on the Properties of Copper Nanoparticle-filled Epoxy Composite

for Electrical Conductive Adhesive (ECA) Application, Journal of Materials Science: Materials in Electronics, Volume 21, Issue 8 (2010), Page 772

-778

1.0200

80 Suriati Ghazali, M.Mariatti & Azizan Aziz, Effects of filler shape and size on the properties of silver filled epoxy composite for electronic applica-

tions, J Mater Sci: Mater Electron (2011) 22:56–63

1.0200

81 K.L. Chan, Mariatti. M, Z. Lockman, Effect of Ultrasonicationof the Properties of Co Nanoparticles-Filled Epoxy Composite2010, 21, 772-778,

Journal of materials Science: Material Electronics

1.0200

82 Nur Azam Badarulzaman, Ahmad Azmin Mohamad, Sunara Puwadaria, Zainal Arifin Ahmad, The evaluation of nickel deposit obtained via Watts

electrolyte at ambient temperature, J. Coat. Technol. Res., 7 (6) 815–820, 2010

0.8380

83 L.N. Chang and W.S. Chow (2010). Accelerated Weathering on Glass Fiber/Epoxy/Organo-Montmorillonite Nanocomposites, Journal of

Composite Materials, 44, 12, 1421-1434.

0.8060

84 Hakimah Osman, Hanafi Ismail & Mariatti Mustapha (2010).Effects of maleic anhydride polypropylene on tensile, water absorption, and morpho-

logical properties of recycled newspaper filled polypropylene/natural rubber composites. vol 44, pp 1477-1491

0.8060

85 J. K. C. Hao, A. Z. A. Azhar, M. M. Ratnam and Z. A. Ahmad, Wear performance and mechanical properties of 80 wt-%Al2O3/20 wt-%YSZ cutting

inserts at different sintering rates and soaking times, Materials Science and Technology 2010 Volume 26, No 1, 95-103

0.7940

86 M.K. Abdullah, M.Z. Abdullah, M. A. Mujeebu, H. Gitano, Z.M. Ariff, R. Razali and K.A. Ahmad, “Three-Dimensional Modelling of Mould Filling in

Microchip Encapsulation Process with Matrix Array Arrangement”, Journal of Electronic Packaging, Vol. 132, (2010).

0.7810

87 Evaluation of hybridizing talc and surface-treated kaolin on the properties of PP hybrid composites Journal of Reinforced Plastics and Composites

December 2010 vol. 29 no. 23 3429-3441

0.7630

88 H. Ismail & F.S. Haw (2010).Curing characteristics and mechanical properties of hybrid palm ash/silica/natural rubber composites. SAGE publica-

tion. Vol 29, pp 105-111

0.7630

89 H. Osman, H. Ismail & M. Mariatti (2010).Comparison of reinforcing efficiency between recycled newspaper (RNP)/Carbon Black (CB) and

Recycled Newspaper (RNP)/Silica Hybrid Filled Polypropylene (PP)/Natural Rubber (NR) composites . Vol 29, pp 60-75, 2010

0.7630

90 Firoozian, P., Akil, H.M., Abdul Khalil, H.P.S. (2010) Prediction of mechanical properties of mica-filled epoxy composite using various mechanical

models, Journal of Reinforced plastics and Composites, 29 (15), pp. 2368-2378

0.7630

91 Yusriah L., M. Mariatti, A. A. Bakar, (2010) The Properties of Vinyl Ester Composites Reinforced Woven Fabrics and Hollow Phenolic

Microspheres, Journal of Reinforced Plastics and Composites. Volume 29 Issue 20 1-8

0.7630

92 N.Zaharri and N. Othman (2010) optimization of zeolite as filler in polypropylene composite, Journal of reinforced plastic and composite 19 (14)

pp2211

0.7630

93 R. Mat Taib, S. Ramarad, Z. A. Mohd Ishak, and H. D. Rozman. 2010. Effect of acetylation and MAPE on the properties of steam-exploded Acacia

mangium fiber-HDPE composites. Journal of Reinforced Plastics & Composites, 29:431-444.

0.7630

94 M. Saleem, M.H Sayyad, Kh.S. Karimov, Z.M. Karieva, K. Y. Cheong, and A. F. Mohd Noor, “I-V characteristics of Ag/OD-MO/Ag surface-type

diode fabricated by deposition of organic film from solution under the effect of an electric field," The European Physical Journal Applied

Physics (EDP Sciences) Vol. 50, pp. 30401,2010.

0.7560

95 S.B. Neoh , X.M.Lee , A.R. Azura and Azanam S.Hashim,(2010), Effect of in situ polymerization of styrene onto natural rubber on adhesion prop-

erties of styrene-natural rubber (SNR) adhesives, Journal of Adhesion 86, 859-873

0.6880

96 Julkapli, N.M., Ahmad, Z., Akil, H.M. (2010) Preparation and characterization of 1,2,4,5-benzenetetra carboxylic-chitosan, E-Polymers, art. no.

077,

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97 H. Ismail, D. Galpaya & Z.Ahmad (2010).Electron-beam irradiation of blends of polypropylene with recycled acrylonitrile-butadiene rubber, wiley

interscience, vol 16, 141-146

0.5300

98 S.T. Sam, H. Ismail & Z. Ahmad (2010).Effect of epoxidized natural rubber on the processing behavior, tensile properties, morphology, and ther-

mal properties of linear-low-density polyethylene/soya powder blends.Wiley Interscience. Vol 16(4), 238-245, 2010

0.5300

99 Yusriah L., M. Mariatti, A. A. Bakar, Specific Properties of Particulate Fillers /Woven Glass Fabric Filled Vinyl Ester Epoxy Composites, (2010)

Journal of Vinyl & Additive Technology, 16 (1), pp. 98-104

0.5300

100 A. R. Jamaludin, S. R. Kasim, Z. A. Ahmad. (2010). The effect of CaCo3 addition on the crystallization behavior of ZnO crystal glaze at different

gloss firing and crystallization temperatures. Science of Sintering, 42, 345-355

0.4900

101 Izwan Johari, Syamsuhaili Said, Badorul Hisham Abu Bakar, Zainal Arifin Ahmad, Effect of the change of firing temperature on microstructure and

physical properties of clay bricks from Beruas (Malaysia), Science of Sintering, 42 (2010) 245-254

0.4860

102 Hussain Zuhailawati, Alaa Muhsin Saeed, Ahmad Badri Ismail, Zahurin Samad, Tadashi Ariga, Spot resistance brazing of titanium/nickel joint with

metal filler, Welding Journal, Vol 89, No 5 (2010) pp.101-104S

0.4260

103 M.N. Masri, Z.M. Yunus, A.R.M. Warikh, A.A. Mohamad, Electrical conductivity and corrosion protection properties of conductive paint coating,

Anti-Corrosion Methods and Materials 57 (2010) 204-208

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Factor

104 N.Z. Noriman, Ismail H, C.T.Ratnam, A.A.Rashid, (2010), The effects of electron beam (EB) irradiation in presence of TMPTA on cure characteris-

tics and mechanical properties of styrene butadiene rubber/recycled acrylonitrile-butadiene rubber (SBR)/NBRr) blends, Polymer-Plastics

Technology & Engineering, 49, (3), p 228 – 236

0.4200

105 N.Z. Noriman, Ismail H, C.T.Ratnam, A.A.Rashid, (2010), Natural weathering test of styrene butadiene rubber and recycled acrylonitrile butadiene

rubber (SBR/NBRr) blends Polymer-Plastics Technology & Engineering 49:731-741

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106 W.S. Chow and Susan Neoh (2010). Mechanical, Morphological and Thermal Properties of Polycarbonate/SEBS-g-MA/Montmorillonite

Nanocomposite. Polymer-Plastics Technology and Engineering, 49, 1, 62-68.

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107 S.G. Tan and W.S. Chow (2010). Thermal Properties, Fracture Toughness and Water Absorption of Epoxy-Palm Oil Blends Polymer-Plastics

Technology and Engineering, 49, 9, 900-907.

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108 H. Ismail, D. Galpaya & Z.Ahmad (2010). Effects of dynamic vulcanization on tensile properties, morphology and natural weathering of polypropy-

lene/recycled acrylonitrile butadiene rubber (pp/nbrr) blends. vol 49, pp 110-119, 2010.

0.4200

109 H. Ismail, A.M. Norjulia & Z. Ahmad (2010).The effects of untreated and treated kenaf loading on the properties of kenaf fibre-filled natural rubber

compounds. Taylor & Francis. Vol 49, pp 519-524, 2010

0.4200

110 A.G. Supri, H. Ismail & S. Shuhadah (2010). Effect of polyethylene-grafted maleic anhydride (PE-g-MAH) on properties of low density polyethyl-

ene/eggshell powder (LDPE/ESP) composites. Taylor & Francis. Vol 49, pp 347-353, 2010

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111 H. Ismail, A.M. Norjulia & Z. Ahmad (2010).Curing Characteristics, Mechanical and Morphological Properties of Kenaf Fibre/Halloysite Nanotubes

Hybrid-Filled Natural Rubber Compounds. Taylor & Francis. Vol 49, pp 938-943, 2010

0.4200

112 Abdul Ghani Supri and Hanafi Ismail (2010). The effect of NCO-polyol on the properties of low-density polyethylene/water hyacinth fiber

(Eichhornia crassiper) composites. Taylor & Francis. Vol 49, pp 766-771, 2010

0.4200

113 H. Ismail & Z.X. Ooi (2010). The effect of epoxidized natural rubber (ENR-50) as a compatibilizer on properties of high-density polyethylene/soya

powder blends.Taylor & Francis. Vol 49, 688-693, 2010

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114 H.Ismail,A.H. Abdullah, A.A.Bakar. (2010) The effects of a silane-based coupling agent on the properties of kenaf core-reinforced high-density poly-

ethylene (HDPE)/soya powder composites. Taylor & Francis. Vol 49 (11), 1095-1100, 2010

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115 D. Galpaya, H. Ismail & Z.Ahmad. (2010)The effects of PP-g-Ma on the physical properties and morphology of polypropylene (PP)/recycled acry-

lonitrile butadiene rubber (rNBR) blends.Taylor & Francis. Vol 49 (11), 1150-1154, 2010

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116 N.Z. Noriman, H. Ismail & A.A. Rashid (2010).The Effects of Recycled Acrylonitrile Butadiene Rubber Content and Maleic Anhydride Modified

Polypropylene (PPMAH) on the Mixing, Tensile Properties, Swelling Percentage and Morphology of Polypropylene/Recycled Acrylonitrile Butadiene

Rubber/Rice Husk Powder (PP/NBRr/RHP) Composites. Taylor & Francis. Vol 49 (13), 1323-1328, 2010

0.4200

117 R.Abdul Majid ,H Ismail, R. Mat Taib. (2010) The effect of Natural Weathering on the properties of linear Density Polyethylene

(LDPE)/Thermoplastic Sago Startch (TPSS) Belends. polymers-plastic technologies and engineering 49 1142-1149

0.4200

118 Julkapli, N.M., Akil, H.M. 2010 Influence of a plasticizer on the mechanical properties of kenaf-filled chitosan bio-composites, Polymer - Plastics

Technology and Engineering 49 (9), pp. 944-951

0.4200

119 Julkapli, N.M., Akil, H.M. 2010 Thermal properties of kenaf-filled chitosan biocomposites, Polymer - Plastics Technology and Engineering 49 (2),

pp. 147-153

0.4200

120 Chou P.M. & Mariatti M. Properties of polymethyl methacrylate (PMMA) bone cement filled with titania and hydroxyapatite fillers, Polymer -

Plastics Technology and Engineering, Volume 49 Issue 12, 1163 (2010)

0.4200

121 Hanafi Ismail, Faizal Ramly, Nadras Othman (2010) Multiwall carbon nanotube-filled natural rubber: The effect of filler loading and mixing method,

Polymer-Plastics Technology and Engineering 49 (3) 260-266

0.4200

122 Noor Zalikha, Zulkifli Ahmad and Nadras Othman, Effect of Pro-degradant Additives Concentration on Aging Properties of Polypropylene Films,

Polymer-Plastics Technology and Engineering, (2010), 49(3), 272-278.

0.4200

123 Ramezani, M., Ripin, Z.M., Ahmad, R., Akil, H.M., Damghani-Nouri, M. 2010 High strain-rate bulge forming of sheet metals using a solid bulging

medium, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 224 (2), pp. 257-270

0.4120

124 Bun Kim Ngun, Hasmaliza Mohamad, Etsuo Sakai and Zainal Arifin Ahmad, Effect of rice husk ash and silica fume in ternary system on the prop-

erties of blended cement paste and concrete, Journal of Ceramic Processing Research. Vol. 11, No. 3, pp. 311~315 (2010) (ISI)

0.4020

125 Mohd Warikh Abd. Rashid, Sabar D. Hutagalung and Zainal Arifin Ahmad, Properties of a CaCu3-xMn4+xO12 system synthesized via a solid-state

reaction, Journal of Ceramic Processing Research, 11(6)660-664, 2010

0.4020

126 W.F. Lim, K.Y. Cheong, Z. Lockman, F.A. Jasni, and H.J. Quah, “Effects of Post-Deposition Annealing on CeO2 Gate Prepared by Metal-Organic

Decomposition (MOD) Method on 4H-SiC,” Materials Science Forum (Trans Tech Publications), Vols. 645-648, pp. 837-840, 2010.

0.3990

127 J.H. Moon, J.H. Yim, H.S. Seo, C.H. Kim, D.H. Lee, K.Y. Cheong, W. Bahng, N.-K. Kim, and H.J. Kim, “Improved 4H-SiC MOS interface produced

by oxidized-SiN gate oxide,” Materials Science Forum (Trans Tech Publications), Vols. 645-648, pp. 511-514, 2010.

0.3990

128 Farhad B Bahaaideen, Zaidi Mohd Ripin, Zainal Arifin Ahmad, Electroless Ni-P-Cg (graphite)-SiC composite coating and its application onto Piston

Rings of a small two stroke utility engine, Journal of Scientific & Industrial Research, Vol. 69, November 2010, pp. 830-834.

0.3590

129 Akil, H.Md., Cheng, L.W., Affzan, M.H., Bakar, A.A., Ishak, Z.A.M. Water absorption study on pultruded e-glass fibre reinforced unsaturated poly-

ester composites (2010) Advanced Composites Letters, 19 (3), pp. 67-73.

0.3110

130 Kien-Seng Lew, Radzali Othman, Fei-Yee Yeoh(2010) Synthesis and Characterization of Mesoporous Hydroxyapatite, Advances in Science and

Technology, 63, pp.152-157

0.2334

TOTAL 172.5864

Documents

13. Enjinier Dis2010