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dc.contributor.authorAlabi, Adetunji
dc.contributor.authorCseri, Levente
dc.contributor.authorAl Hajaj, Ahmed
dc.contributor.authorSzekely, Gyorgy
dc.contributor.authorBudd, Peter
dc.contributor.authorZou, Linda
dc.date.accessioned2019-10-13T10:22:38Z
dc.date.available2019-10-13T10:22:38Z
dc.date.issued2019-09-07
dc.identifier.citationAlabi, A., Cseri, L., Al Hajaj, A., Szekely, G., Budd, P., & Zou, L. (2020). Electrostatically-coupled graphene oxide nanocomposite cation exchange membrane. Journal of Membrane Science, 594, 117457. doi:10.1016/j.memsci.2019.117457
dc.identifier.doi10.1016/j.memsci.2019.117457
dc.identifier.urihttp://hdl.handle.net/10754/658602
dc.description.abstractWe report the preparation of an electrostatically-coupled graphene oxide nanocomposite cation exchange membrane (CEM) based on sulfonic group containing graphene oxide (SGO) (45 wt % loading) and polyvinylidene fluoride (PVDF), where the ion exchange groups were provided by the SGO additive. SGO was prepared via the mixing of graphene oxide (GO) with a mixture derived from 3,4-dihydroxy-L-phenylalanine (L-DOPA) and poly(sodium 4-styrenesulfonate) (PSS). A mold-casting technique was developed to fabricate the free-standing nanocomposite CEM. The presence of sulfonic groups in the nanocomposite was confirmed with FTIR spectroscopy. Energy dispersive spectroscopy analysis showed the SGO was distributed across the entire membrane matrix, with minimal aggregation. The resultant SGO/PVDF nanocomposite CEM membrane demonstrated high hydrophilicity and high water uptake, but low swelling ratio. Furthermore, evaluation of the electrochemical properties of the nanocomposite CEM showed favorable ion exchange capacity (0.63 ± 0.08 meq/g), permselectivity (0.95 ± 0.04), and area resistance (2.8 ± 0.2 Ω cm2). The nanocomposite CEM show good potential for use in electromembrane desalination applications.
dc.description.sponsorshipThis manucript is part of the collaborative project between Masdar Institute-Khalifa University and University of Manchester (SMG2016-000001). The authors acknowledge the financial support of Khalifa University, Abu Dhabi, UAE, and the University of Manchester. The authors would also like to thank Habeebllah Oladipo and Tuza Olukan for their help with AFM characterizations; Mahendra Kumar and Moza Al Humaidi for helping with water contact angle measurements; and Cyril Aubry and Hammed Younes for assisting with Raman spectroscopy.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0376738819321088
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of Membrane Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Membrane Science, [[Volume], [Issue], (2019-09-07)] DOI: 10.1016/j.memsci.2019.117457 . © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectGraphene oxide-
dc.subjectCation exchange membrane
dc.subjectNanocomposite
dc.subjectElectromembrane desalination
dc.subjectL-DOPA
dc.subjectpoly(sodium 4-styrenesulfonate)
dc.titleElectrostatically-coupled graphene oxide nanocomposite cation exchange membrane
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalJournal of Membrane Science
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Civil Infrastructure and Environmental Engineering, Khalifa University of Science and Technology, Masdar Campus, Abu Dhabi, 54224, United Arab Emirates
dc.contributor.institutionSchool of Chemical Engineering and Analytical Science, University of Manchester, The Mill, Sackville Street, Manchester, M1 3BB, United Kingdom
dc.contributor.institutionDepartment of Chemical Engineering, Khalifa University of Science and Technology, Masdar Campus, Abu Dhabi, 54224, United Arab Emirates
dc.contributor.institutionSchool of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
kaust.personSzekely, Gyorgy
refterms.dateFOA2019-10-13T10:23:36Z
dc.date.published-online2019-09-07
dc.date.published-print2020-01


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