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Article: Preparation of nanocavity-contained thin film composite nanofiltration membranes with enhanced permeability and divalent to monovalent ion selectivity

TitlePreparation of nanocavity-contained thin film composite nanofiltration membranes with enhanced permeability and divalent to monovalent ion selectivity
Authors
KeywordsDesalination pretreatment
Interfacial polymerization
Nanofiltration
Thin film composite
β-Cyclodextrin
Issue Date2018
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/desal
Citation
Desalination, 2018, v. 445, p. 115-122 How to Cite?
AbstractUsing hydroxypropyl-β-cyclodextrins (OH-β-CD) as aqueous phase additive, nanocavity-contained thin film composite (TFC) nanofiltration (NF) membranes were prepared by interfacial polymerization of piperazine (PIP) and trimesoyl chloride (TMC). Attenuated total reflectance Fourier transform infrared and X-ray photoelectron spectroscopy analysis confirmed the successful incorporation of OH-β-CDs into the thin polyamide rejection layers. The rejection layer morphologies and structures, surface properties and separation performances of the prepared TFC membranes were greatly influenced by the OH-β-CD mass ratio in aqueous phase during interfacial polymerization. With appropriate OH-β-CD mass ratios (20–60%), the prepared TFC membranes showed enhanced water flux, reduced RNaCl, increased RNa2SO4 and RMgSO4, which led to highly improved divalent to monovalent ions selectivity. These nanocavity-contained TFC membranes exhibited the potential to apply in desalination pretreatment.
Persistent Identifierhttp://hdl.handle.net/10722/264030
ISSN
2019 Impact Factor: 7.098
2015 SCImago Journal Rankings: 1.549
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYao, Z-
dc.contributor.authorGuo, H-
dc.contributor.authorYang, Z-
dc.contributor.authorQing, W-
dc.contributor.authorTang, C-
dc.date.accessioned2018-10-22T07:48:22Z-
dc.date.available2018-10-22T07:48:22Z-
dc.date.issued2018-
dc.identifier.citationDesalination, 2018, v. 445, p. 115-122-
dc.identifier.issn0011-9164-
dc.identifier.urihttp://hdl.handle.net/10722/264030-
dc.description.abstractUsing hydroxypropyl-β-cyclodextrins (OH-β-CD) as aqueous phase additive, nanocavity-contained thin film composite (TFC) nanofiltration (NF) membranes were prepared by interfacial polymerization of piperazine (PIP) and trimesoyl chloride (TMC). Attenuated total reflectance Fourier transform infrared and X-ray photoelectron spectroscopy analysis confirmed the successful incorporation of OH-β-CDs into the thin polyamide rejection layers. The rejection layer morphologies and structures, surface properties and separation performances of the prepared TFC membranes were greatly influenced by the OH-β-CD mass ratio in aqueous phase during interfacial polymerization. With appropriate OH-β-CD mass ratios (20–60%), the prepared TFC membranes showed enhanced water flux, reduced RNaCl, increased RNa2SO4 and RMgSO4, which led to highly improved divalent to monovalent ions selectivity. These nanocavity-contained TFC membranes exhibited the potential to apply in desalination pretreatment.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/desal-
dc.relation.ispartofDesalination-
dc.subjectDesalination pretreatment-
dc.subjectInterfacial polymerization-
dc.subjectNanofiltration-
dc.subjectThin film composite-
dc.subjectβ-Cyclodextrin-
dc.titlePreparation of nanocavity-contained thin film composite nanofiltration membranes with enhanced permeability and divalent to monovalent ion selectivity-
dc.typeArticle-
dc.identifier.emailYao, Z: yaozk@hku.hk-
dc.identifier.emailGuo, H: guohao7@hku.hk-
dc.identifier.emailQing, W: qingwh@hku.hk-
dc.identifier.emailTang, C: tangc@hku.hk-
dc.identifier.authorityTang, C=rp01765-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.desal.2018.07.023-
dc.identifier.scopuseid_2-s2.0-85051137870-
dc.identifier.hkuros295693-
dc.identifier.volume445-
dc.identifier.spage115-
dc.identifier.epage122-
dc.identifier.isiWOS:000446287300012-
dc.publisher.placeNetherlands-
dc.identifier.issnl0011-9164-

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