Influence of graphene oxide's characteristics on the fabrication and performance of crosslinked nanofiltration membranes
Graphene oxide (GO) is emerging as an excellent next generation material for water purification membranes. Its ability to be fabricated cost-effectively in large quantities and featured characteristics, such as hydrophilicity, makes it an equitable graphene alternative in respective nanometric applications, including nanofiltration. In this study, the influence of key properties of the GO sheets, such as lateral size, surface chemistry and colloid stability, on the successful fabrication and subsequent water purification performance of crosslinked nanofiltration membranes is analysed. GO water suspensions with nanosheets of different lateral sizes and distribution of oxygenated functional groups were prepared by controlling the sonication time (from 0 to 180 min) starting from commercial GO. The variation of the physicochemical characteristics of the resulting GO sheets was comprehensively studied by means of atomic force microscopy, UV–Vis absorption spectroscopy, zeta potential measurements and X-Ray photoelectron spectroscopy. The morphology of the subsequently fabricated membranes was hereafter examined via scanning electron microscopy, while their nanofiltration performance was investigated against methylene blue solution. The influence of GO's physicochemical characteristics on membrane performance was apparent, with the average rejection values ranging from 59.8% to 98.4% at a changing lateral size and surface chemistry.
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Format: | artículo biblioteca |
Language: | English |
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Elsevier
2021-01-29
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Subjects: | Cross-linked membranes, Graphene oxide, Surface chemistry, Water purification, Nanofiltration, |
Online Access: | http://hdl.handle.net/10261/260825 https://api.elsevier.com/content/abstract/scopus_id/85099957503 |
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dig-incar-es-10261-2608252024-05-20T20:41:01Z Influence of graphene oxide's characteristics on the fabrication and performance of crosslinked nanofiltration membranes Kandjou, Vepika González Arias, Zoraida Acevedo, Beatriz Munuera Fernández, José María Paredes Nachón, Juan Ignacio Melendi Espina, Sonia Ministerio de Ciencia, Innovación y Universidades (España) González Arias, Zoraida [0000-0001-8932-3671] Munuera Fernández, José María [0000-0002-8176-4795] Paredes Nachón, Juan Ignacio [0000-0002-0044-9153] Cross-linked membranes Graphene oxide Surface chemistry Cross-linked membranes Water purification Nanofiltration Graphene oxide (GO) is emerging as an excellent next generation material for water purification membranes. Its ability to be fabricated cost-effectively in large quantities and featured characteristics, such as hydrophilicity, makes it an equitable graphene alternative in respective nanometric applications, including nanofiltration. In this study, the influence of key properties of the GO sheets, such as lateral size, surface chemistry and colloid stability, on the successful fabrication and subsequent water purification performance of crosslinked nanofiltration membranes is analysed. GO water suspensions with nanosheets of different lateral sizes and distribution of oxygenated functional groups were prepared by controlling the sonication time (from 0 to 180 min) starting from commercial GO. The variation of the physicochemical characteristics of the resulting GO sheets was comprehensively studied by means of atomic force microscopy, UV–Vis absorption spectroscopy, zeta potential measurements and X-Ray photoelectron spectroscopy. The morphology of the subsequently fabricated membranes was hereafter examined via scanning electron microscopy, while their nanofiltration performance was investigated against methylene blue solution. The influence of GO's physicochemical characteristics on membrane performance was apparent, with the average rejection values ranging from 59.8% to 98.4% at a changing lateral size and surface chemistry. V.K. special gratitude to the Botswana Government's Top Achievers Scholarship Programme for the scholarship (TR.163096). J.M.M. and J.I.P. acknowledge funding from the Ministerio de Ciencia, Innovación y Universidades (MICINN, Spain), Agencia Estatal de Investigación (AEI) and the European Regional Development Fund (ERDF) through project RTI2018-100832-B-I00. Peer reviewed 2022-02-15T08:12:31Z 2022-02-15T08:12:31Z 2021-01-29 artículo http://purl.org/coar/resource_type/c_6501 Journal of the Taiwan Institute of Chemical Engineers 119: 158-165 (2021) 1876-1070 http://hdl.handle.net/10261/260825 10.1016/j.jtice.2021.01.023 2-s2.0-85099957503 https://api.elsevier.com/content/abstract/scopus_id/85099957503 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-100832-B-I00/ES/INGENIERIA ESTRUCTURAL DE GRAFENO Y MATERIALES BIDIMENSIONALES NOVEDOSOS PARA APLICACIONES EN ALMACENAMIENTO DE ENERGIA, CATALITICAS Y MEDIOAMBIENTALES/ Journal of the Taiwan Institute of Chemical Engineers Postprint https://doi.org/10.1016/j.jtice.2021.01.023 Sí open Elsevier |
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Cross-linked membranes Graphene oxide Surface chemistry Cross-linked membranes Water purification Nanofiltration Cross-linked membranes Graphene oxide Surface chemistry Cross-linked membranes Water purification Nanofiltration |
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Cross-linked membranes Graphene oxide Surface chemistry Cross-linked membranes Water purification Nanofiltration Cross-linked membranes Graphene oxide Surface chemistry Cross-linked membranes Water purification Nanofiltration Kandjou, Vepika González Arias, Zoraida Acevedo, Beatriz Munuera Fernández, José María Paredes Nachón, Juan Ignacio Melendi Espina, Sonia Influence of graphene oxide's characteristics on the fabrication and performance of crosslinked nanofiltration membranes |
description |
Graphene oxide (GO) is emerging as an excellent next generation material for water purification membranes. Its ability to be fabricated cost-effectively in large quantities and featured characteristics, such as hydrophilicity, makes it an equitable graphene alternative in respective nanometric applications, including nanofiltration. In this study, the influence of key properties of the GO sheets, such as lateral size, surface chemistry and colloid stability, on the successful fabrication and subsequent water purification performance of crosslinked nanofiltration membranes is analysed. GO water suspensions with nanosheets of different lateral sizes and distribution of oxygenated functional groups were prepared by controlling the sonication time (from 0 to 180 min) starting from commercial GO. The variation of the physicochemical characteristics of the resulting GO sheets was comprehensively studied by means of atomic force microscopy, UV–Vis absorption spectroscopy, zeta potential measurements and X-Ray photoelectron spectroscopy. The morphology of the subsequently fabricated membranes was hereafter examined via scanning electron microscopy, while their nanofiltration performance was investigated against methylene blue solution. The influence of GO's physicochemical characteristics on membrane performance was apparent, with the average rejection values ranging from 59.8% to 98.4% at a changing lateral size and surface chemistry. |
author2 |
Ministerio de Ciencia, Innovación y Universidades (España) |
author_facet |
Ministerio de Ciencia, Innovación y Universidades (España) Kandjou, Vepika González Arias, Zoraida Acevedo, Beatriz Munuera Fernández, José María Paredes Nachón, Juan Ignacio Melendi Espina, Sonia |
format |
artículo |
topic_facet |
Cross-linked membranes Graphene oxide Surface chemistry Cross-linked membranes Water purification Nanofiltration |
author |
Kandjou, Vepika González Arias, Zoraida Acevedo, Beatriz Munuera Fernández, José María Paredes Nachón, Juan Ignacio Melendi Espina, Sonia |
author_sort |
Kandjou, Vepika |
title |
Influence of graphene oxide's characteristics on the fabrication and performance of crosslinked nanofiltration membranes |
title_short |
Influence of graphene oxide's characteristics on the fabrication and performance of crosslinked nanofiltration membranes |
title_full |
Influence of graphene oxide's characteristics on the fabrication and performance of crosslinked nanofiltration membranes |
title_fullStr |
Influence of graphene oxide's characteristics on the fabrication and performance of crosslinked nanofiltration membranes |
title_full_unstemmed |
Influence of graphene oxide's characteristics on the fabrication and performance of crosslinked nanofiltration membranes |
title_sort |
influence of graphene oxide's characteristics on the fabrication and performance of crosslinked nanofiltration membranes |
publisher |
Elsevier |
publishDate |
2021-01-29 |
url |
http://hdl.handle.net/10261/260825 https://api.elsevier.com/content/abstract/scopus_id/85099957503 |
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