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Article: An anion exchange membrane modified by alternate electro-deposition layers with enhanced monovalent selectivity

TitleAn anion exchange membrane modified by alternate electro-deposition layers with enhanced monovalent selectivity
Authors
KeywordsAnion exchange membrane
Electro-deposition
Electrodialysis
Monovalent anion permselectivity
Polystyrene sulfonate
Issue Date2016
Citation
Journal of Membrane Science, 2016, v. 520, p. 262-271 How to Cite?
AbstractA novel anion exchange membrane (AEM) is developed through poly (sodium 4-styrene sulfonate) (PSS) and hydroxypropyltrimethyl ammonium chloride chitosan (HACC) alternate electro-deposition to enhance the monovalent selectivity. Compared to the commercial original AEM, coating of the (PSS/HACC)N alternate electro-deposition multilayer on the membrane surface dramatically enhance the selectivity of anions. In addition, the permselectivity for monovalent anions of the membranes was investigated by electrodialysis experiments. For comparison, the corresponding Cl−/SO42− were chosen and the average values of permselectivity and separation efficiency of commercial AEM are 0.66 and −0.19 respectively. As result of alternate electro-deposition of PSS/HACC layers, the permselectivity raised up to 2.90 and the separation efficiency also increased up to 0.28 for nine PSS/HACC bilayers needed. Under the optimal fabricating conditions, the area resistance of membrane arrived at 4.52 Ω cm2 with nine PSS/HACC bilayers. Meanwhile, the polarization current-voltage curves and ζ-potential of membranes were also tested to characterize the electrochemical behavior of the modified membrane. The high selectivities of these membranes may enable electrodialysis applications in separation of monovalent and divalent anions.
Persistent Identifierhttp://hdl.handle.net/10722/327944
ISSN
2023 Impact Factor: 8.4
2023 SCImago Journal Rankings: 1.848
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhao, Yan-
dc.contributor.authorTang, Kaini-
dc.contributor.authorLiu, Huimin-
dc.contributor.authorVan der Bruggen, B.-
dc.contributor.authorSotto Díaz, Arcadio-
dc.contributor.authorShen, Jiangnan-
dc.contributor.authorGao, Congjie-
dc.date.accessioned2023-06-05T06:52:50Z-
dc.date.available2023-06-05T06:52:50Z-
dc.date.issued2016-
dc.identifier.citationJournal of Membrane Science, 2016, v. 520, p. 262-271-
dc.identifier.issn0376-7388-
dc.identifier.urihttp://hdl.handle.net/10722/327944-
dc.description.abstractA novel anion exchange membrane (AEM) is developed through poly (sodium 4-styrene sulfonate) (PSS) and hydroxypropyltrimethyl ammonium chloride chitosan (HACC) alternate electro-deposition to enhance the monovalent selectivity. Compared to the commercial original AEM, coating of the (PSS/HACC)N alternate electro-deposition multilayer on the membrane surface dramatically enhance the selectivity of anions. In addition, the permselectivity for monovalent anions of the membranes was investigated by electrodialysis experiments. For comparison, the corresponding Cl−/SO42− were chosen and the average values of permselectivity and separation efficiency of commercial AEM are 0.66 and −0.19 respectively. As result of alternate electro-deposition of PSS/HACC layers, the permselectivity raised up to 2.90 and the separation efficiency also increased up to 0.28 for nine PSS/HACC bilayers needed. Under the optimal fabricating conditions, the area resistance of membrane arrived at 4.52 Ω cm2 with nine PSS/HACC bilayers. Meanwhile, the polarization current-voltage curves and ζ-potential of membranes were also tested to characterize the electrochemical behavior of the modified membrane. The high selectivities of these membranes may enable electrodialysis applications in separation of monovalent and divalent anions.-
dc.languageeng-
dc.relation.ispartofJournal of Membrane Science-
dc.subjectAnion exchange membrane-
dc.subjectElectro-deposition-
dc.subjectElectrodialysis-
dc.subjectMonovalent anion permselectivity-
dc.subjectPolystyrene sulfonate-
dc.titleAn anion exchange membrane modified by alternate electro-deposition layers with enhanced monovalent selectivity-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.memsci.2016.07.026-
dc.identifier.scopuseid_2-s2.0-84982863373-
dc.identifier.volume520-
dc.identifier.spage262-
dc.identifier.epage271-
dc.identifier.eissn1873-3123-
dc.identifier.isiWOS:000384785000027-

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