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Article: An alkaline stable anion exchange membrane for electro-desalination

TitleAn alkaline stable anion exchange membrane for electro-desalination
Authors
KeywordsAnion exchange membranes
1-Naphthol
Electro-desalination
Alkaline stable
Issue Date2021
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/desal
Citation
Desalination, 2021, v. 497, p. article no. 114779 How to Cite?
AbstractAnion exchange membrane (AEM) as a positively-charged polymer allows the transition of anions, block the cations, and has been widely used in the electro-desalination processes. Permselectivity, alkaline stability, and electric ohmic resistance on the AEM are critical issues determining the final desalination efficiency in an electro-desalination process. Here in this work, the AEM with sound desalination and alkaline stable character was fabricated from the aspect of functional group optimization, i.e., introduce into the 2, 6-dimethyl-1, 4-phenylene oxide (PPO) polymer matrix as the alternative of the conventional. The 1-naphthol derivatives, i.e., 2-[dimethylaminomethyl] naphthalen-1-ol, and 2,7-bis[dimethylaminomethyl] naphthalen-1-ol as the functional groups provide conjugated π-electron, which may increase the alkaline stability of the anion exchange membranes (AEMs), and thus guarantee its long-term stability when operating the electro-desalination process over the limiting current density condition. The innovative membranes perform lower area resistance 0.5–2.27 Ω cm2 and well stability in the alkaline circumstance. In comparison to the commercial membranes (Neosepta AMX, standard grade), the obtained membrane presented comparable electro-desalination performance. The results indicate AEMs that functionalized by 1-naphthol derivatives can be a promising candidate for electro-desalination processes.
Persistent Identifierhttp://hdl.handle.net/10722/305293
ISSN
2023 Impact Factor: 8.3
2023 SCImago Journal Rankings: 1.521
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorAlam, MM-
dc.contributor.authorHossain, M-
dc.contributor.authorMei, Y-
dc.contributor.authorJiang, C-
dc.contributor.authorWang, Y-
dc.contributor.authorTang, C-
dc.contributor.authorXu, T-
dc.date.accessioned2021-10-20T10:07:23Z-
dc.date.available2021-10-20T10:07:23Z-
dc.date.issued2021-
dc.identifier.citationDesalination, 2021, v. 497, p. article no. 114779-
dc.identifier.issn0011-9164-
dc.identifier.urihttp://hdl.handle.net/10722/305293-
dc.description.abstractAnion exchange membrane (AEM) as a positively-charged polymer allows the transition of anions, block the cations, and has been widely used in the electro-desalination processes. Permselectivity, alkaline stability, and electric ohmic resistance on the AEM are critical issues determining the final desalination efficiency in an electro-desalination process. Here in this work, the AEM with sound desalination and alkaline stable character was fabricated from the aspect of functional group optimization, i.e., introduce into the 2, 6-dimethyl-1, 4-phenylene oxide (PPO) polymer matrix as the alternative of the conventional. The 1-naphthol derivatives, i.e., 2-[dimethylaminomethyl] naphthalen-1-ol, and 2,7-bis[dimethylaminomethyl] naphthalen-1-ol as the functional groups provide conjugated π-electron, which may increase the alkaline stability of the anion exchange membranes (AEMs), and thus guarantee its long-term stability when operating the electro-desalination process over the limiting current density condition. The innovative membranes perform lower area resistance 0.5–2.27 Ω cm2 and well stability in the alkaline circumstance. In comparison to the commercial membranes (Neosepta AMX, standard grade), the obtained membrane presented comparable electro-desalination performance. The results indicate AEMs that functionalized by 1-naphthol derivatives can be a promising candidate for electro-desalination processes.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/desal-
dc.relation.ispartofDesalination-
dc.subjectAnion exchange membranes-
dc.subject1-Naphthol-
dc.subjectElectro-desalination-
dc.subjectAlkaline stable-
dc.titleAn alkaline stable anion exchange membrane for electro-desalination-
dc.typeArticle-
dc.identifier.emailTang, C: tangc@hku.hk-
dc.identifier.authorityTang, C=rp01765-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.desal.2020.114779-
dc.identifier.scopuseid_2-s2.0-85092416729-
dc.identifier.hkuros326741-
dc.identifier.volume497-
dc.identifier.spagearticle no. 114779-
dc.identifier.epagearticle no. 114779-
dc.identifier.isiWOS:000582795900011-
dc.publisher.placeNetherlands-

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