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Influence of inorganic additives on the performance of polysulfone ultrafiltration membrane

Yunos, Muhamad Zaini and Harun, Zawati and Basri, Hatijah and Shohur, Mohd Fikri and Jamalludin, Mohd Riduan and Hassan, Sulaiman and Ismail, Ahmad Fauzi (2013) Influence of inorganic additives on the performance of polysulfone ultrafiltration membrane. Jurnal Teknologi, 65 (4). pp. 111-115. ISSN 21803722


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The influence of zinc oxide and silver (I) oxide in polysulfone ultrafiltration membrane was studied. The membranes were prepared via phase inversion method. The morphology, surface roughness, hydrophillicity and antibacterial properties of membrane were investigated using SEM, AFM and contact angle device consecutively. It was found that membrane with zinc oxide additive has excellent pure water flux as compared to silver (I) oxide. However silver (I) oxide has better humic acid rejection due to the tradeoff effect. SEM-EDX for PSf/silver (I) oxide reveals that the accumulation of silver on top area in cross section of membrane while for zinc oxide seems more concentrated on the bottom. Interestingly, the AFM results support the previous result when PSf/zinc oxide showed better surface roughness on the top of the membrane. Eventhough zinc oxide is known one of antibacterial material, however from qualitative experiment using disc diffusion test (e-coli), there is no inhibition ring for PSf/zinc oxide membrane as compared to membrane with PSf/silver (I) oxide membrane which shows excellence inhibition ring.

Item Type: Article
Uncontrolled Keywords: zinc oxide; silver (I) oxide; humic acid
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Normajihan Abd. Rahman
Date Deposited: 19 Oct 2016 09:51
Last Modified: 19 Oct 2016 09:51
URI: http://eprints.uthm.edu.my/id/eprint/8261
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