Organo-Functionalization: An Effective Method in Enhancing the Separation and Antifouling Performance of Thin-Film Nanocomposite Membranes by Improving the Uniform Dispersion of Palygorskite Nanoparticles

Recently, palygorskite (Pal) has become a promising new membrane additive in flux enhancement and fouling reduction, which is an environmentally friendly nanoclay material under the 2:1 layer composition with 1D tubular structure. However, the aggregation of Pal due to the intermolecular forces is s...

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Autores principales:	Liu Yang, Qianwen Zhang, Qikun Wang, Wande Ding, Kefeng Zhang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	reverse osmosis palygorskite nanoparticles organo-functionalization desalination antifouling Chemical technology TP1-1185 Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/6aaa4b4ba87b47f88f99fb0a98924224
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spelling	oai:doaj.org-article:6aaa4b4ba87b47f88f99fb0a989242242021-11-25T18:20:06ZOrgano-Functionalization: An Effective Method in Enhancing the Separation and Antifouling Performance of Thin-Film Nanocomposite Membranes by Improving the Uniform Dispersion of Palygorskite Nanoparticles10.3390/membranes111108892077-0375https://doaj.org/article/6aaa4b4ba87b47f88f99fb0a989242242021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0375/11/11/889https://doaj.org/toc/2077-0375Recently, palygorskite (Pal) has become a promising new membrane additive in flux enhancement and fouling reduction, which is an environmentally friendly nanoclay material under the 2:1 layer composition with 1D tubular structure. However, the aggregation of Pal due to the intermolecular forces is still an obstacle to be solved in improving membrane performance. Herein, Pal nanoparticles were chemically modified by KH550 to weaken the aggregation and improve the dispersibility, and then incorporated into the organic phase to prepare thin-film nanocomposite (TFN) membranes. The results showed that the organo-functionalization could effectively improve the membrane hydrophilicity and dispersion of Pal nanoparticles in the polyamide layer, which contributed to the enhanced water flux (from 25 to 38 L/m<sup>2</sup>·h), unchanged salt rejection (98.0%) and better antifouling capacity (91% flux recovery rate), which suggested that the organo-functionalization of nanoparticles was an efficient method in further enhancing membrane performanceLiu YangQianwen ZhangQikun WangWande DingKefeng ZhangMDPI AGarticlereverse osmosispalygorskite nanoparticlesorgano-functionalizationdesalinationantifoulingChemical technologyTP1-1185Chemical engineeringTP155-156ENMembranes, Vol 11, Iss 889, p 889 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	reverse osmosis palygorskite nanoparticles organo-functionalization desalination antifouling Chemical technology TP1-1185 Chemical engineering TP155-156
spellingShingle	reverse osmosis palygorskite nanoparticles organo-functionalization desalination antifouling Chemical technology TP1-1185 Chemical engineering TP155-156 Liu Yang Qianwen Zhang Qikun Wang Wande Ding Kefeng Zhang Organo-Functionalization: An Effective Method in Enhancing the Separation and Antifouling Performance of Thin-Film Nanocomposite Membranes by Improving the Uniform Dispersion of Palygorskite Nanoparticles
description	Recently, palygorskite (Pal) has become a promising new membrane additive in flux enhancement and fouling reduction, which is an environmentally friendly nanoclay material under the 2:1 layer composition with 1D tubular structure. However, the aggregation of Pal due to the intermolecular forces is still an obstacle to be solved in improving membrane performance. Herein, Pal nanoparticles were chemically modified by KH550 to weaken the aggregation and improve the dispersibility, and then incorporated into the organic phase to prepare thin-film nanocomposite (TFN) membranes. The results showed that the organo-functionalization could effectively improve the membrane hydrophilicity and dispersion of Pal nanoparticles in the polyamide layer, which contributed to the enhanced water flux (from 25 to 38 L/m<sup>2</sup>·h), unchanged salt rejection (98.0%) and better antifouling capacity (91% flux recovery rate), which suggested that the organo-functionalization of nanoparticles was an efficient method in further enhancing membrane performance
format	article
author	Liu Yang Qianwen Zhang Qikun Wang Wande Ding Kefeng Zhang
author_facet	Liu Yang Qianwen Zhang Qikun Wang Wande Ding Kefeng Zhang
author_sort	Liu Yang
title	Organo-Functionalization: An Effective Method in Enhancing the Separation and Antifouling Performance of Thin-Film Nanocomposite Membranes by Improving the Uniform Dispersion of Palygorskite Nanoparticles
title_short	Organo-Functionalization: An Effective Method in Enhancing the Separation and Antifouling Performance of Thin-Film Nanocomposite Membranes by Improving the Uniform Dispersion of Palygorskite Nanoparticles
title_full	Organo-Functionalization: An Effective Method in Enhancing the Separation and Antifouling Performance of Thin-Film Nanocomposite Membranes by Improving the Uniform Dispersion of Palygorskite Nanoparticles
title_fullStr	Organo-Functionalization: An Effective Method in Enhancing the Separation and Antifouling Performance of Thin-Film Nanocomposite Membranes by Improving the Uniform Dispersion of Palygorskite Nanoparticles
title_full_unstemmed	Organo-Functionalization: An Effective Method in Enhancing the Separation and Antifouling Performance of Thin-Film Nanocomposite Membranes by Improving the Uniform Dispersion of Palygorskite Nanoparticles
title_sort	organo-functionalization: an effective method in enhancing the separation and antifouling performance of thin-film nanocomposite membranes by improving the uniform dispersion of palygorskite nanoparticles
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6aaa4b4ba87b47f88f99fb0a98924224
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Organo-Functionalization: An Effective Method in Enhancing the Separation and Antifouling Performance of Thin-Film Nanocomposite Membranes by Improving the Uniform Dispersion of Palygorskite Nanoparticles

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