Modifications of conventional organic membranes with photocatalysts for antifouling and self-cleaning properties applied in wastewater filtration and separation processes: A review

The combination of conventional organic membranes and photocatalysts has led to an extensively studied field that is so-called photocatalyst modified membranes with antifouling, self-cleaning properties under UV or visible light irradiation. However, most of the research is limited to laboratory sca...

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Published inSeparation science and technology Vol. 57; no. 9; pp. 1471 - 1500
Main Authors Nguyen, Hieu Trung, Pham, Minh-Thuan, Nguyen, Truc-Mai Thi, Bui, Ha Manh, Wang, Ya-Fen, You, Sheng-Jie
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 13.06.2022
Taylor & Francis Ltd
Subjects
Antifouling
Antifouling substances
Cleaning
Fabrication
Filtration
Irradiation
Light irradiation
membrane modification
Membrane processes
Membranes
Methods
organic polymeric membrane
Photocatalysis
Photocatalysts
photocatalytic membrane
Pollutants
Properties
Separation
Separation processes
Stability
Wastewater
wastewater treatments
Water purification
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Summary:The combination of conventional organic membranes and photocatalysts has led to an extensively studied field that is so-called photocatalyst modified membranes with antifouling, self-cleaning properties under UV or visible light irradiation. However, most of the research is limited to laboratory scale and artificial experimental conditions because this field still faces obstacles to practical applications. The main problems are the stability of these photocatalytic membranes or the binding between the photocatalysts and the membranes, and the low antifouling performance under visible light irradiation. Therefore, photocatalyst designs, membrane modification and fabrication methods are the key factors determining the success or failure of these photocatalytic membranes in water and wastewater filtration and separation processes. In this review, various types of photocatalyst incorporation into polymeric membranes were discussed, including the long-term stability, the organic pollutants' degradation efficiency, and the antifouling, self-cleaning performance of photocatalytic membranes. In addition, the mechanisms of membrane fouling and antifouling, membrane classifications, and fabrication methods were also discussed.
Bibliography:ObjectType-Article-1
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content type line 14
ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2021.1982981