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dc.contributor.authorMichael D. Guiver-
dc.date.accessioned2018-03-13T02:44:12Z-
dc.date.available2018-03-13T02:44:12Z-
dc.date.issued2013-06-
dc.identifier.citationJOURNAL OF MEMBRANE SCIENCE, 2013, 445, p.220-227en_US
dc.identifier.issn0376-7388-
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0376738813004961-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/45798-
dc.description.abstractDue to its simple process and low energy consumption, forward osmosis (FO) has gained significant attention in the fields of portable hydration bags, desalination, landfill leachate treatment, and brine concentration. However, current state-of-the-art reverse osmosis (RO) membranes show relatively low water fluxes in FO processes due to high internal concentration polarization (ICP) and high mass transfer resistance in commercially available microporous support membranes. In this study, carboxylated polysulfones (CPSFs) were synthesized via direct polysulfone (PSF) functionalization and considered as hydrophilic, mechanically stable microporous support membranes. The incorporation of hydrophilic groups into hydrophobic polymer backbones often reduces mechanical strength due to excessive water swelling. However, the mechanical properties of CPSFs (degree of substitution, DS = 0.49-0.85) were similar to those of pristine PSF, and they retained their hydrophilic nature. Microporous CPSF membranes were prepared in various conditions, and FO water fluxes and salt passages of polyamide thin-film/CPSF composite membranes were measured and compared with each other. CPSF-based FO membranes showed significantly higher water fluxes (water flux in FO mode: 18 L/m(2) h, salt passage: 2.2 g/m(2) h under 1 M MgCl2 as a draw solution, active layer facing DI water) than PSF-based FO membranes (10.5 L/m(2) h, 1.5 g/m(2) h at the same conditions), which might be due to enhanced hydrophilicity and reduced ICP. (c) 2013 Crown. Published by Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipThe World Class University (WCU) Program of the Ministry of Education, Science, and Technology (MEST) in Korea supported this study.en_US
dc.language.isoenen_US
dc.publisherElsevier Science B.V., Amsterdam.en_US
dc.subjectForward osmosisen_US
dc.subjectMicroporous membraneen_US
dc.subjectDesalinationen_US
dc.subjectCarboxylated polysulfoneen_US
dc.titlePolyamide thin-film composite membranes based on carboxylated polysulfone microporous support membranes for forward osmosisen_US
dc.typeArticleen_US
dc.relation.volume445-
dc.identifier.doi10.1016/j.memsci.2013.06.003-
dc.relation.page220-227-
dc.relation.journalJOURNAL OF MEMBRANE SCIENCE-
dc.contributor.googleauthorCho, Young Hoon-
dc.contributor.googleauthorHan, Jungim-
dc.contributor.googleauthorHan, Sungsoo-
dc.contributor.googleauthorGuiver, Michael D-
dc.contributor.googleauthorPark, Ho Bum-
dc.relation.code2013010804-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ENERGY ENGINEERING-
dc.identifier.pidguiver-
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COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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