Incorporation of Silver Nitrate (AgNO3) in Polysulfone-Polyethyleneimine (PSF-PEI) Membrane for Enhanced Antibacterial Properties Against Escherichia coli (E. coli)

The Polysulfone-Polyethyleneimine (PSF-PEI) hybrid membranes were successfully synthesized via wet-phase inversion method with the varying concentration of silver nitrate (AgNO3). The objective of this research is to characterize and evaluate the performance of antibacterial membrane under various c...

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Main Author:	Ramizah Liyana, Jama-in
Format:	Thesis
Language:	English English
Published:	2020
Subjects:	QD Chemistry T Technology (General) TP Chemical technology
Online Access:	http://ir.unimas.my/id/eprint/32202/5/20201019143444.pdf http://ir.unimas.my/id/eprint/32202/7/Ramizah%20Liyana%20Jama-in%20ft.pdf
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spelling	my-unimas-ir.322022023-06-27T07:55:40Z Incorporation of Silver Nitrate (AgNO3) in Polysulfone-Polyethyleneimine (PSF-PEI) Membrane for Enhanced Antibacterial Properties Against Escherichia coli (E. coli) 2020-10-16 Ramizah Liyana, Jama-in QD Chemistry T Technology (General) TP Chemical technology The Polysulfone-Polyethyleneimine (PSF-PEI) hybrid membranes were successfully synthesized via wet-phase inversion method with the varying concentration of silver nitrate (AgNO3). The objective of this research is to characterize and evaluate the performance of antibacterial membrane under various concentrations of AgNO3, ranging from 0.5 to 2.0 wt.%. The membrane surface morphologies were examined by using SEM and it was observed that the cross-sections of fabricated membranes showed spongy-like structure. The FTIR analysis has also illustrated some slight adjustment in the spectra due to the presence of AgNO3. The performance of the fabricated membranes was evaluated with regards to their porosity, membrane flux, and antibacterial activity in terms of E. coli inhibition. Based on the results, it was observed that the highest water flux of 22.2537 L/m2.h was illustrated by CM C membrane (with 1.0 wt.% of AgNO3), while further increment of AgNO3 amount showed a decrement trend in water flux. The highest porosity of 70.9% was also demonstrated by CM C membrane, which could further support the high water flux findings as exhibited by this membrane. The antibacterial properties were examined using E. coli and the antibacterial activity was observed through the inhibition zone diameter. The best antibacterial properties were exhibited by CM E membrane (with 2.0 wt.% of AgNO3), which was the highest available amount of AgNO3 among all membrane samples. Hence, it was concluded that the incorporation of AgNO3 has contributed to the membrane enhancement in terms of water permeability and antibacterial capability which are highly preferable for various industrial applications. Universiti Malaysia Sarawak (UNIMAS) 2020-10 Thesis http://ir.unimas.my/id/eprint/32202/ http://ir.unimas.my/id/eprint/32202/5/20201019143444.pdf text en public http://ir.unimas.my/id/eprint/32202/7/Ramizah%20Liyana%20Jama-in%20ft.pdf text en validuser masters UNIVERSITI MALAYSIA SARAWAK (UNIMAS) Faculty of Engineering
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English English
topic	QD Chemistry T Technology (General) TP Chemical technology
spellingShingle	QD Chemistry T Technology (General) TP Chemical technology Ramizah Liyana, Jama-in Incorporation of Silver Nitrate (AgNO3) in Polysulfone-Polyethyleneimine (PSF-PEI) Membrane for Enhanced Antibacterial Properties Against Escherichia coli (E. coli)
description	The Polysulfone-Polyethyleneimine (PSF-PEI) hybrid membranes were successfully synthesized via wet-phase inversion method with the varying concentration of silver nitrate (AgNO3). The objective of this research is to characterize and evaluate the performance of antibacterial membrane under various concentrations of AgNO3, ranging from 0.5 to 2.0 wt.%. The membrane surface morphologies were examined by using SEM and it was observed that the cross-sections of fabricated membranes showed spongy-like structure. The FTIR analysis has also illustrated some slight adjustment in the spectra due to the presence of AgNO3. The performance of the fabricated membranes was evaluated with regards to their porosity, membrane flux, and antibacterial activity in terms of E. coli inhibition. Based on the results, it was observed that the highest water flux of 22.2537 L/m2.h was illustrated by CM C membrane (with 1.0 wt.% of AgNO3), while further increment of AgNO3 amount showed a decrement trend in water flux. The highest porosity of 70.9% was also demonstrated by CM C membrane, which could further support the high water flux findings as exhibited by this membrane. The antibacterial properties were examined using E. coli and the antibacterial activity was observed through the inhibition zone diameter. The best antibacterial properties were exhibited by CM E membrane (with 2.0 wt.% of AgNO3), which was the highest available amount of AgNO3 among all membrane samples. Hence, it was concluded that the incorporation of AgNO3 has contributed to the membrane enhancement in terms of water permeability and antibacterial capability which are highly preferable for various industrial applications.
format	Thesis
qualification_level	Master's degree
author	Ramizah Liyana, Jama-in
author_facet	Ramizah Liyana, Jama-in
author_sort	Ramizah Liyana, Jama-in
title	Incorporation of Silver Nitrate (AgNO3) in Polysulfone-Polyethyleneimine (PSF-PEI) Membrane for Enhanced Antibacterial Properties Against Escherichia coli (E. coli)
title_short	Incorporation of Silver Nitrate (AgNO3) in Polysulfone-Polyethyleneimine (PSF-PEI) Membrane for Enhanced Antibacterial Properties Against Escherichia coli (E. coli)
title_full	Incorporation of Silver Nitrate (AgNO3) in Polysulfone-Polyethyleneimine (PSF-PEI) Membrane for Enhanced Antibacterial Properties Against Escherichia coli (E. coli)
title_fullStr	Incorporation of Silver Nitrate (AgNO3) in Polysulfone-Polyethyleneimine (PSF-PEI) Membrane for Enhanced Antibacterial Properties Against Escherichia coli (E. coli)
title_full_unstemmed	Incorporation of Silver Nitrate (AgNO3) in Polysulfone-Polyethyleneimine (PSF-PEI) Membrane for Enhanced Antibacterial Properties Against Escherichia coli (E. coli)
title_sort	incorporation of silver nitrate (agno3) in polysulfone-polyethyleneimine (psf-pei) membrane for enhanced antibacterial properties against escherichia coli (e. coli)
granting_institution	UNIVERSITI MALAYSIA SARAWAK (UNIMAS)
granting_department	Faculty of Engineering
publishDate	2020
url	http://ir.unimas.my/id/eprint/32202/5/20201019143444.pdf http://ir.unimas.my/id/eprint/32202/7/Ramizah%20Liyana%20Jama-in%20ft.pdf
_version_	1783728412795338752

Incorporation of Silver Nitrate (AgNO3) in Polysulfone-Polyethyleneimine (PSF-PEI) Membrane for Enhanced Antibacterial Properties Against Escherichia coli (E. coli)

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