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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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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. |
format | Online Article Text |
id | pubmed-7823365 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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