Staff View: Fabrication and characterization of graphene oxide–polyethersulfone (GO–PES) composite flat sheet and hollow fiber membranes for oil

Fabrication and characterization of graphene oxide–polyethersulfone (GO–PES) composite flat sheet and hollow fiber membranes for oil–water separation

BACKGROUND: In this work, a series of graphene oxide–polyethersulfone (GO–PES) composite flat sheet (FS) and hollow fiber (HF) membranes were fabricated by blending 0.5 and 1.0 wt% of GO into the PES matrix and utilized for oil–water separation. GO was first prepared and characterized by using Fouri...

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Main Authors:	Junaidi, Nurul Fatin Diana, Othman, Nur Hidayati, Shahruddin, Munawar Zaman, Alias, Nur Hashimah, Marpani, Fauziah, Lau, Woei Jye, Ismail, Ahmad Fauzi
Format:	Article
Published:	John Wiley and Sons Ltd 2020
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/93833/ http://dx.doi.org/10.1002/jctb.6366
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spelling	my.utm.938332022-01-31T08:37:18Z http://eprints.utm.my/id/eprint/93833/ Fabrication and characterization of graphene oxide–polyethersulfone (GO–PES) composite flat sheet and hollow fiber membranes for oil–water separation Junaidi, Nurul Fatin Diana Othman, Nur Hidayati Shahruddin, Munawar Zaman Alias, Nur Hashimah Marpani, Fauziah Lau, Woei Jye Ismail, Ahmad Fauzi TP Chemical technology BACKGROUND: In this work, a series of graphene oxide–polyethersulfone (GO–PES) composite flat sheet (FS) and hollow fiber (HF) membranes were fabricated by blending 0.5 and 1.0 wt% of GO into the PES matrix and utilized for oil–water separation. GO was first prepared and characterized by using Fourier-transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) and thermogravimetric analysis (TGA) before being used as membrane fillers. RESULTS: Interestingly, although similar dope composition was used for the fabrication of HF and FS membranes, their morphology and pore size varied significantly owing to the way the membranes were fabricated. Significant enhancement of hydrophilicity was observed for both composite FS and HF membranes, where the water contact angle value decreased from 74.8° to 42.2° and 71.4° to 49.8°, respectively. The flux of the composite membranes increased up to 150% of the bare membranes especially when 1.0 wt% of GO was added. Although higher oil rejection (~99%) was observed for HF membranes that possess smaller pores, the permeation flux was maintained due to the improved flow dynamic. Lower oil rejection (up to 50%) was observed for FS membranes, which might be due to its big pore sizes particularly at the bottom surface. As more oil droplets formed on the membrane surface and prevented water molecules to pass through the membrane, fouling might occur rapidly. CONCLUSIONS: The results obtained in this work suggest that surface hydrophilicity, pore size of membranes and oil–water separation performances was greatly affected by membrane shape. Owing to many advantages of HF membranes, this type of membrane has great potential for commercial applications. John Wiley and Sons Ltd 2020 Article PeerReviewed Junaidi, Nurul Fatin Diana and Othman, Nur Hidayati and Shahruddin, Munawar Zaman and Alias, Nur Hashimah and Marpani, Fauziah and Lau, Woei Jye and Ismail, Ahmad Fauzi (2020) Fabrication and characterization of graphene oxide–polyethersulfone (GO–PES) composite flat sheet and hollow fiber membranes for oil–water separation. Journal of Chemical Technology and Biotechnology, 95 (5). pp. 1308-1320. ISSN 0268-2575 http://dx.doi.org/10.1002/jctb.6366
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TP Chemical technology
spellingShingle	TP Chemical technology Junaidi, Nurul Fatin Diana Othman, Nur Hidayati Shahruddin, Munawar Zaman Alias, Nur Hashimah Marpani, Fauziah Lau, Woei Jye Ismail, Ahmad Fauzi Fabrication and characterization of graphene oxide–polyethersulfone (GO–PES) composite flat sheet and hollow fiber membranes for oil–water separation
description	BACKGROUND: In this work, a series of graphene oxide–polyethersulfone (GO–PES) composite flat sheet (FS) and hollow fiber (HF) membranes were fabricated by blending 0.5 and 1.0 wt% of GO into the PES matrix and utilized for oil–water separation. GO was first prepared and characterized by using Fourier-transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) and thermogravimetric analysis (TGA) before being used as membrane fillers. RESULTS: Interestingly, although similar dope composition was used for the fabrication of HF and FS membranes, their morphology and pore size varied significantly owing to the way the membranes were fabricated. Significant enhancement of hydrophilicity was observed for both composite FS and HF membranes, where the water contact angle value decreased from 74.8° to 42.2° and 71.4° to 49.8°, respectively. The flux of the composite membranes increased up to 150% of the bare membranes especially when 1.0 wt% of GO was added. Although higher oil rejection (~99%) was observed for HF membranes that possess smaller pores, the permeation flux was maintained due to the improved flow dynamic. Lower oil rejection (up to 50%) was observed for FS membranes, which might be due to its big pore sizes particularly at the bottom surface. As more oil droplets formed on the membrane surface and prevented water molecules to pass through the membrane, fouling might occur rapidly. CONCLUSIONS: The results obtained in this work suggest that surface hydrophilicity, pore size of membranes and oil–water separation performances was greatly affected by membrane shape. Owing to many advantages of HF membranes, this type of membrane has great potential for commercial applications.
format	Article
author	Junaidi, Nurul Fatin Diana Othman, Nur Hidayati Shahruddin, Munawar Zaman Alias, Nur Hashimah Marpani, Fauziah Lau, Woei Jye Ismail, Ahmad Fauzi
author_facet	Junaidi, Nurul Fatin Diana Othman, Nur Hidayati Shahruddin, Munawar Zaman Alias, Nur Hashimah Marpani, Fauziah Lau, Woei Jye Ismail, Ahmad Fauzi
author_sort	Junaidi, Nurul Fatin Diana
title	Fabrication and characterization of graphene oxide–polyethersulfone (GO–PES) composite flat sheet and hollow fiber membranes for oil–water separation
title_short	Fabrication and characterization of graphene oxide–polyethersulfone (GO–PES) composite flat sheet and hollow fiber membranes for oil–water separation
title_full	Fabrication and characterization of graphene oxide–polyethersulfone (GO–PES) composite flat sheet and hollow fiber membranes for oil–water separation
title_fullStr	Fabrication and characterization of graphene oxide–polyethersulfone (GO–PES) composite flat sheet and hollow fiber membranes for oil–water separation
title_full_unstemmed	Fabrication and characterization of graphene oxide–polyethersulfone (GO–PES) composite flat sheet and hollow fiber membranes for oil–water separation
title_sort	fabrication and characterization of graphene oxide–polyethersulfone (go–pes) composite flat sheet and hollow fiber membranes for oil–water separation
publisher	John Wiley and Sons Ltd
publishDate	2020
url	http://eprints.utm.my/id/eprint/93833/ http://dx.doi.org/10.1002/jctb.6366
_version_	1724073271856463872
score	13.211869

Fabrication and characterization of graphene oxide–polyethersulfone (GO–PES) composite flat sheet and hollow fiber membranes for oil–water separation

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