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Article: A highly selective surface coating for enhanced membrane rejection of endocrine disrupting compounds: Mechanistic insights and implications

TitleA highly selective surface coating for enhanced membrane rejection of endocrine disrupting compounds: Mechanistic insights and implications
Authors
Issue Date2017
Citation
Water Research, 2017, v. 121, p. 197-203 How to Cite?
AbstractWe designed a highly selective surface coating to achieve enhanced rejection of endocrine disrupting compounds (EDCs) by nanofiltration membranes. A commercial NF90 membrane was first coated with polydopamine (PDA) followed by in situ immobilization of silver nanoparticles (AgNPs). This PDA/AgNPs coating greatly improved EDC rejection at the expense of slight water permeability loss (4–10%). This improvement in rejection can be attributed to a combination of enhanced size exclusion and suppressed hydrophobic interaction. A resistance-in-series analysis further reveals that the coating was highly permeable to water but highly resistant to EDCs, leading to an EDC selectivity that was an order of magnitude greater than those of the bare PDA coating and the base membrane NF90. The current study provides important insights into the design of highly selective coatings for effective retention of targeted trace organic contaminants.
Persistent Identifierhttp://hdl.handle.net/10722/247315
ISSN
2017 Impact Factor: 7.051
2015 SCImago Journal Rankings: 2.772
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorGuo, H-
dc.contributor.authorDeng, Y-
dc.contributor.authorYao, Z-
dc.contributor.authorYang, Z-
dc.contributor.authorWang, J-
dc.contributor.authorLin, C-
dc.contributor.authorZhang, T-
dc.contributor.authorZhu, B-
dc.contributor.authorTang, C-
dc.date.accessioned2017-10-18T08:25:27Z-
dc.date.available2017-10-18T08:25:27Z-
dc.date.issued2017-
dc.identifier.citationWater Research, 2017, v. 121, p. 197-203-
dc.identifier.issn0043-1354-
dc.identifier.urihttp://hdl.handle.net/10722/247315-
dc.description.abstractWe designed a highly selective surface coating to achieve enhanced rejection of endocrine disrupting compounds (EDCs) by nanofiltration membranes. A commercial NF90 membrane was first coated with polydopamine (PDA) followed by in situ immobilization of silver nanoparticles (AgNPs). This PDA/AgNPs coating greatly improved EDC rejection at the expense of slight water permeability loss (4–10%). This improvement in rejection can be attributed to a combination of enhanced size exclusion and suppressed hydrophobic interaction. A resistance-in-series analysis further reveals that the coating was highly permeable to water but highly resistant to EDCs, leading to an EDC selectivity that was an order of magnitude greater than those of the bare PDA coating and the base membrane NF90. The current study provides important insights into the design of highly selective coatings for effective retention of targeted trace organic contaminants.-
dc.languageeng-
dc.relation.ispartofWater Research-
dc.titleA highly selective surface coating for enhanced membrane rejection of endocrine disrupting compounds: Mechanistic insights and implications-
dc.typeArticle-
dc.identifier.emailYao, Z: yaozk@hku.hk-
dc.identifier.emailZhang, T: zhangt@hkucc.hku.hk-
dc.identifier.emailTang, C: tangc@hku.hk-
dc.identifier.authorityZhang, T=rp00211-
dc.identifier.authorityTang, C=rp01765-
dc.identifier.doi10.1016/j.watres.2017.05.037-
dc.identifier.hkuros281297-
dc.identifier.volume121-
dc.identifier.spage197-
dc.identifier.epage203-
dc.identifier.isiWOS:000403432100019-

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