Mohd Azmuddin Abdullah

Dr. Mohd Azmuddin Abdullah

Universiti Malaysia Terengganu
orcid

Research Focus & Metrics

Academic Career Length

30Years (1997-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 May 2010 in Journal of Hazardous Materials
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Journal Article
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Mohd Azmuddin AbdullahMohd Azmuddin Abdullah
Mohd Azmuddin Abdullah
ARAnisa Ur Rahmah
Anisa Ur Rahmah
ZMZ. Man
Z. Man

31 January 2013 in BioResources
Verified
Journal Article
Open access
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MNMuhammad Shahid Nazir
Muhammad Shahid Nazir
BWBambang Air Wahjoedi
Bambang Air Wahjoedi
AYAbdul Wahid Yussof
Abdul Wahid Yussof
Mohd Azmuddin AbdullahMohd Azmuddin Abdullah
Mohd Azmuddin Abdullah
Cellulosic fibers in Oil Palm Empty Fruit Bunches (OPEFB) are tightly packed with lignin, hemicelluloses, small depositions of wax, and inorganic elements. In the present work, eco-friendly reagents with low concentrations of 20% (v/v) formic acid and 10% (v/v) of 30% hydrogen peroxide were employed at 85 ºC for the extraction of cellulose from OPEFB. The yield of 64% (w/w) achieved was among the highest ever reported. Based on the XRD, the alpha-cellulose content was 93.7% with a high crystallinity of 69.9%. The average diameter was 13.5 μm with structural evidence of separated fibrils as investigated by FESEM. The TEM analysis suggested that the material was crystalline and its geometry was a monoclinic structure. The FTIR spectral peaks representing wax and hemicelluloses at 1735 cm-1 and 1375 cm-1, respectively, and lignin at 1248 cm-1 and 1037 cm-1, were not observed in the extracted OPEFB-cellulose spectra. Based on the TGA results, thermal stability at 325 ºC with a single degradation curve suggests the purity of OPEFB-cellulose.

23 August 2021 in Applied Nanoscience
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Journal Article
Closed access
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HHHanaa Ali Hussein
Hanaa Ali Hussein
Mohd Azmuddin AbdullahMohd Azmuddin Abdullah
Mohd Azmuddin Abdullah

1 February 2009 in Chemical Engineering Journal
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Journal Article
Closed access
Mohd Azmuddin AbdullahMohd Azmuddin Abdullah
Mohd Azmuddin Abdullah
LCL. Chiang
L. Chiang
MNM. Nadeem
M. Nadeem

15 April 2010 in Journal of Hazardous Materials
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Journal Article
Closed access
SASaepurahman
Saepurahman
Mohd Azmuddin AbdullahMohd Azmuddin Abdullah
Mohd Azmuddin Abdullah
FCFai Kait Chong
Fai Kait Chong

1 May 2009 in Chemical Engineering Journal
Verified
Journal Article
Closed access
MNM. Nadeem
M. Nadeem
SMShabbir Muhammad
Shabbir Muhammad
Mohd Azmuddin AbdullahMohd Azmuddin Abdullah
Mohd Azmuddin Abdullah
SSS.S. Shah
S.S. Shah
GMG. McKay
G. McKay