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Tuning the permselectivity of polymeric desalination membranes via control of polymer crystallite size
Membrane desalination is a leading technology for treating saline waters to augment fresh water supply. The need for high-performance desalination membranes, particularly with high water/salt selectivity, has stimulated research into the fundamental structure-property-performance relationship of sta...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6538653/ https://www.ncbi.nlm.nih.gov/pubmed/31138798 http://dx.doi.org/10.1038/s41467-019-10132-0 |
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author | Lu, Xinglin Feng, Xunda Yang, Yi Jiang, Jin Cheng, Wei Liu, Caihong Gopinadhan, Manesh Osuji, Chinedum O. Ma, Jun Elimelech, Menachem |
author_facet | Lu, Xinglin Feng, Xunda Yang, Yi Jiang, Jin Cheng, Wei Liu, Caihong Gopinadhan, Manesh Osuji, Chinedum O. Ma, Jun Elimelech, Menachem |
author_sort | Lu, Xinglin |
collection | PubMed |
description | Membrane desalination is a leading technology for treating saline waters to augment fresh water supply. The need for high-performance desalination membranes, particularly with high water/salt selectivity, has stimulated research into the fundamental structure-property-performance relationship of state-of-the-art membranes. In this study, we utilize a facile method for tuning properties of a polymeric desalination membrane to shed light on water and salt transport mechanisms of such membranes. A desalination membrane made of cellulose triacetate is treated in a plasticizer solution, followed by water rinsing. The modified membranes exhibit reduced salt flux without compromising water flux, indicating enhanced water/salt selectivity. An inspection of material characteristics using a model film system reveals a plasticizing-extracting process in changing the polymeric structure, which leads to the reduction of crystallite size in the polymer matrix, consequently affecting the transport properties of the membranes. Our findings highlight the potential of the plasticizing-extracting process in fabricating membranes with desired desalination performance. |
format | Online Article Text |
id | pubmed-6538653 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-65386532019-05-30 Tuning the permselectivity of polymeric desalination membranes via control of polymer crystallite size Lu, Xinglin Feng, Xunda Yang, Yi Jiang, Jin Cheng, Wei Liu, Caihong Gopinadhan, Manesh Osuji, Chinedum O. Ma, Jun Elimelech, Menachem Nat Commun Article Membrane desalination is a leading technology for treating saline waters to augment fresh water supply. The need for high-performance desalination membranes, particularly with high water/salt selectivity, has stimulated research into the fundamental structure-property-performance relationship of state-of-the-art membranes. In this study, we utilize a facile method for tuning properties of a polymeric desalination membrane to shed light on water and salt transport mechanisms of such membranes. A desalination membrane made of cellulose triacetate is treated in a plasticizer solution, followed by water rinsing. The modified membranes exhibit reduced salt flux without compromising water flux, indicating enhanced water/salt selectivity. An inspection of material characteristics using a model film system reveals a plasticizing-extracting process in changing the polymeric structure, which leads to the reduction of crystallite size in the polymer matrix, consequently affecting the transport properties of the membranes. Our findings highlight the potential of the plasticizing-extracting process in fabricating membranes with desired desalination performance. Nature Publishing Group UK 2019-05-28 /pmc/articles/PMC6538653/ /pubmed/31138798 http://dx.doi.org/10.1038/s41467-019-10132-0 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Lu, Xinglin Feng, Xunda Yang, Yi Jiang, Jin Cheng, Wei Liu, Caihong Gopinadhan, Manesh Osuji, Chinedum O. Ma, Jun Elimelech, Menachem Tuning the permselectivity of polymeric desalination membranes via control of polymer crystallite size |
title | Tuning the permselectivity of polymeric desalination membranes via control of polymer crystallite size |
title_full | Tuning the permselectivity of polymeric desalination membranes via control of polymer crystallite size |
title_fullStr | Tuning the permselectivity of polymeric desalination membranes via control of polymer crystallite size |
title_full_unstemmed | Tuning the permselectivity of polymeric desalination membranes via control of polymer crystallite size |
title_short | Tuning the permselectivity of polymeric desalination membranes via control of polymer crystallite size |
title_sort | tuning the permselectivity of polymeric desalination membranes via control of polymer crystallite size |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6538653/ https://www.ncbi.nlm.nih.gov/pubmed/31138798 http://dx.doi.org/10.1038/s41467-019-10132-0 |
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