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Investigation of Anti-fouling and UV-Cleaning Properties of PVDF/TiO(2) Mixed-Matrix Membrane for Humic Acid Removal

Natural organic matters (NOMs) have been found to be the major foulant in the application of ultrafiltration (UF) for treating surface water. Against this background, although hydrophilicity has been demonstrated to aid fouling mitigation, other parameters such as membrane surface morphology may con...

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Autores principales: Teow, Yeit Haan, Ooi, Boon Seng, Ahmad, Abdul Latif, Lim, Jit Kang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7823365/
https://www.ncbi.nlm.nih.gov/pubmed/33374274
http://dx.doi.org/10.3390/membranes11010016
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author Teow, Yeit Haan
Ooi, Boon Seng
Ahmad, Abdul Latif
Lim, Jit Kang
author_facet Teow, Yeit Haan
Ooi, Boon Seng
Ahmad, Abdul Latif
Lim, Jit Kang
author_sort Teow, Yeit Haan
collection PubMed
description Natural organic matters (NOMs) have been found to be the major foulant in the application of ultrafiltration (UF) for treating surface water. Against this background, although hydrophilicity has been demonstrated to aid fouling mitigation, other parameters such as membrane surface morphology may contribute equally to improved fouling resistance. In this work, with humic acid solution as the model substance, the effects of titanium dioxides (TiO(2)) types (PC-20, P25, and X500) on membrane anti-fouling and defouling properties were comparatively analysed. The aims are (1) to determine the correlation between membrane surface morphology and membrane fouling and (2) to investigate the anti-fouling and UV-cleaning abilities of PVDF/TiO(2) mixed-matrix membranes with different membrane topographies and surface energy conditions. The mixed-matrix membrane with P25 TiO(2) exhibited the most significant UV-defouling ability, with a high irreversible flux recovery ratio (IFRR(UV)) of 16.56 after 6 h of UV irradiation, whereas that with X500 TiO(2) exhibited both superior anti-fouling and defouling properties due to its smoother surface and its highly reactive surface layer.
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spelling pubmed-78233652021-01-24 Investigation of Anti-fouling and UV-Cleaning Properties of PVDF/TiO(2) Mixed-Matrix Membrane for Humic Acid Removal Teow, Yeit Haan Ooi, Boon Seng Ahmad, Abdul Latif Lim, Jit Kang Membranes (Basel) Article Natural organic matters (NOMs) have been found to be the major foulant in the application of ultrafiltration (UF) for treating surface water. Against this background, although hydrophilicity has been demonstrated to aid fouling mitigation, other parameters such as membrane surface morphology may contribute equally to improved fouling resistance. In this work, with humic acid solution as the model substance, the effects of titanium dioxides (TiO(2)) types (PC-20, P25, and X500) on membrane anti-fouling and defouling properties were comparatively analysed. The aims are (1) to determine the correlation between membrane surface morphology and membrane fouling and (2) to investigate the anti-fouling and UV-cleaning abilities of PVDF/TiO(2) mixed-matrix membranes with different membrane topographies and surface energy conditions. The mixed-matrix membrane with P25 TiO(2) exhibited the most significant UV-defouling ability, with a high irreversible flux recovery ratio (IFRR(UV)) of 16.56 after 6 h of UV irradiation, whereas that with X500 TiO(2) exhibited both superior anti-fouling and defouling properties due to its smoother surface and its highly reactive surface layer. MDPI 2020-12-24 /pmc/articles/PMC7823365/ /pubmed/33374274 http://dx.doi.org/10.3390/membranes11010016 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Teow, Yeit Haan
Ooi, Boon Seng
Ahmad, Abdul Latif
Lim, Jit Kang
Investigation of Anti-fouling and UV-Cleaning Properties of PVDF/TiO(2) Mixed-Matrix Membrane for Humic Acid Removal
title Investigation of Anti-fouling and UV-Cleaning Properties of PVDF/TiO(2) Mixed-Matrix Membrane for Humic Acid Removal
title_full Investigation of Anti-fouling and UV-Cleaning Properties of PVDF/TiO(2) Mixed-Matrix Membrane for Humic Acid Removal
title_fullStr Investigation of Anti-fouling and UV-Cleaning Properties of PVDF/TiO(2) Mixed-Matrix Membrane for Humic Acid Removal
title_full_unstemmed Investigation of Anti-fouling and UV-Cleaning Properties of PVDF/TiO(2) Mixed-Matrix Membrane for Humic Acid Removal
title_short Investigation of Anti-fouling and UV-Cleaning Properties of PVDF/TiO(2) Mixed-Matrix Membrane for Humic Acid Removal
title_sort investigation of anti-fouling and uv-cleaning properties of pvdf/tio(2) mixed-matrix membrane for humic acid removal
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7823365/
https://www.ncbi.nlm.nih.gov/pubmed/33374274
http://dx.doi.org/10.3390/membranes11010016
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