Inner Surface Hydrophilic Modification of PVDF Membrane with Tea Polyphenols/Silica Composite Coating

The use of Polyvinylidene fluoride (PVDF) membranes is constrained in wastewater treatment because of their hydrophobic nature. Therefore, a large number of researchers have been working on the hydrophilic modification of their surfaces. In this work, a superhydrophilic tea polyphenols/silica compos...

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Detalles Bibliográficos
Autores principales: Xu, Qiang, Ji, Xiaoli, Tian, Jiaying, Jin, Xiaogang, Wu, Lili
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8659430/
https://www.ncbi.nlm.nih.gov/pubmed/34883689
http://dx.doi.org/10.3390/polym13234186
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author Xu, Qiang
Ji, Xiaoli
Tian, Jiaying
Jin, Xiaogang
Wu, Lili
author_facet Xu, Qiang
Ji, Xiaoli
Tian, Jiaying
Jin, Xiaogang
Wu, Lili
author_sort Xu, Qiang
collection PubMed
description The use of Polyvinylidene fluoride (PVDF) membranes is constrained in wastewater treatment because of their hydrophobic nature. Therefore, a large number of researchers have been working on the hydrophilic modification of their surfaces. In this work, a superhydrophilic tea polyphenols/silica composite coating was developed by a one-step process. The composite coating can achieve not only superhydrophilic modification of the surface, but also the inner surface of the porous PVDF membrane, which endows the modified membrane with excellent water permeability. The modified membrane possesses ultrahigh water flux (15,353 L·m(−2)·h(−1)). Besides this, the modified membrane can realize a highly efficient separation of oil/water emulsions (above 96%).
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spelling pubmed-86594302021-12-10 Inner Surface Hydrophilic Modification of PVDF Membrane with Tea Polyphenols/Silica Composite Coating Xu, Qiang Ji, Xiaoli Tian, Jiaying Jin, Xiaogang Wu, Lili Polymers (Basel) Communication The use of Polyvinylidene fluoride (PVDF) membranes is constrained in wastewater treatment because of their hydrophobic nature. Therefore, a large number of researchers have been working on the hydrophilic modification of their surfaces. In this work, a superhydrophilic tea polyphenols/silica composite coating was developed by a one-step process. The composite coating can achieve not only superhydrophilic modification of the surface, but also the inner surface of the porous PVDF membrane, which endows the modified membrane with excellent water permeability. The modified membrane possesses ultrahigh water flux (15,353 L·m(−2)·h(−1)). Besides this, the modified membrane can realize a highly efficient separation of oil/water emulsions (above 96%). MDPI 2021-11-30 /pmc/articles/PMC8659430/ /pubmed/34883689 http://dx.doi.org/10.3390/polym13234186 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Xu, Qiang
Ji, Xiaoli
Tian, Jiaying
Jin, Xiaogang
Wu, Lili
Inner Surface Hydrophilic Modification of PVDF Membrane with Tea Polyphenols/Silica Composite Coating
title Inner Surface Hydrophilic Modification of PVDF Membrane with Tea Polyphenols/Silica Composite Coating
title_full Inner Surface Hydrophilic Modification of PVDF Membrane with Tea Polyphenols/Silica Composite Coating
title_fullStr Inner Surface Hydrophilic Modification of PVDF Membrane with Tea Polyphenols/Silica Composite Coating
title_full_unstemmed Inner Surface Hydrophilic Modification of PVDF Membrane with Tea Polyphenols/Silica Composite Coating
title_short Inner Surface Hydrophilic Modification of PVDF Membrane with Tea Polyphenols/Silica Composite Coating
title_sort inner surface hydrophilic modification of pvdf membrane with tea polyphenols/silica composite coating
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8659430/
https://www.ncbi.nlm.nih.gov/pubmed/34883689
http://dx.doi.org/10.3390/polym13234186
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