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Article: Ultra-thin, multi-layered polyamide membranes: Synthesis and characterization

TitleUltra-thin, multi-layered polyamide membranes: Synthesis and characterization
Authors
Issue Date2017
Citation
Journal of Membrane Science, 2017, v. 540, p. 10-18 How to Cite?
AbstractCustomization of thickness and roughness of thin film composite reverse osmosis (TFC-RO) membranes provides opportunities to optimize the membrane permeability and fouling resistance. We propose a novel strategy to synthesize ultrathin multi-layered polyamide (ML-PA) membranes with the versatile maneuverability of the salt rejecting layer thickness and roughness. We have employed advanced quartz crystal microbalance with dissipation (QCMD) techniques to study the deposition rate of the ultrathin PA nanolayers with a resolution of approximately 8, 15 and 25 nm per deposition cycle. At brackish water desalination condition, the ML-PA membrane exhibited ~ 60% flux increase and higher salt rejection compared with the home-made TFC membrane fabricated by the conventional method. Benefit from the low roughness, the ML-PA membrane shows much better fouling resistance to Bovine serum albumin (BSA).
Persistent Identifierhttp://hdl.handle.net/10722/247316
ISSN
2017 Impact Factor: 6.578
2015 SCImago Journal Rankings: 2.042
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorSong, X-
dc.contributor.authorQi, S-
dc.contributor.authorTang, C-
dc.contributor.authorGao, C-
dc.date.accessioned2017-10-18T08:25:28Z-
dc.date.available2017-10-18T08:25:28Z-
dc.date.issued2017-
dc.identifier.citationJournal of Membrane Science, 2017, v. 540, p. 10-18-
dc.identifier.issn0376-7388-
dc.identifier.urihttp://hdl.handle.net/10722/247316-
dc.description.abstractCustomization of thickness and roughness of thin film composite reverse osmosis (TFC-RO) membranes provides opportunities to optimize the membrane permeability and fouling resistance. We propose a novel strategy to synthesize ultrathin multi-layered polyamide (ML-PA) membranes with the versatile maneuverability of the salt rejecting layer thickness and roughness. We have employed advanced quartz crystal microbalance with dissipation (QCMD) techniques to study the deposition rate of the ultrathin PA nanolayers with a resolution of approximately 8, 15 and 25 nm per deposition cycle. At brackish water desalination condition, the ML-PA membrane exhibited ~ 60% flux increase and higher salt rejection compared with the home-made TFC membrane fabricated by the conventional method. Benefit from the low roughness, the ML-PA membrane shows much better fouling resistance to Bovine serum albumin (BSA).-
dc.languageeng-
dc.relation.ispartofJournal of Membrane Science-
dc.titleUltra-thin, multi-layered polyamide membranes: Synthesis and characterization-
dc.typeArticle-
dc.identifier.emailTang, C: tangc@hku.hk-
dc.identifier.authorityTang, C=rp01765-
dc.identifier.doi10.1016/j.memsci.2017.06.016-
dc.identifier.hkuros281298-
dc.identifier.volume540-
dc.identifier.spage10-
dc.identifier.epage18-
dc.identifier.isiWOS:000407954300002-

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