Overcoming the permeability-selectivity trade-off of desalination membranes via controlled solvent activation
DC Field | Value | Language |
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dc.contributor.author | Shin, Min Gyu | - |
dc.contributor.author | Seo, Jin Young | - |
dc.contributor.author | Park, Hosik | - |
dc.contributor.author | Park, You-In | - |
dc.contributor.author | Lee, Jung-Hyun | - |
dc.date.accessioned | 2021-08-30T02:58:47Z | - |
dc.date.available | 2021-08-30T02:58:47Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2021-02-15 | - |
dc.identifier.issn | 0376-7388 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/49571 | - |
dc.description.abstract | Here, we present a facile solvent activation method for significantly enhancing the desalination performance of reverse osmosis (RO) membranes. Polyamide (PA)-thin film composite (TFC) RO membranes were activated with a dimethyl sulfoxide (DMSO)/water mixture, whose solvency power was carefully controlled by adjusting the DMSO volume fraction. A DMSO/water mixture with a DMSO volume fraction of 0.3 effectively activated the PA selective layer while marginally deforming the polysulfone support of the lab-made PA-TFC membrane, thus considerably enhancing its water permeance by similar to 43% while maintaining its NaCl rejection (similar to 99.4%). All the commercial membranes activated with the optimized DMSO/water activation protocol also exhibited dramatically enhanced water permeance (26-155%) with unchanged or even higher NaCl rejection, surpassing the conventional permeability-selectivity trade-off. A careful characterization of the structures and properties of the model PA film under various solvent environments revealed the thermodynamics and kinetics associated with the activation-induced structural deformation of the PA network, which governs its structural density, consequently affecting the separation properties of the membrane. Our strategy provides a commercially viable means for the fabrication of high-performance membranes together with shedding light on the underlying the structure-property relationship of polymeric membranes. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | REVERSE-OSMOSIS MEMBRANES | - |
dc.subject | FILM COMPOSITE MEMBRANES | - |
dc.subject | NANOFILTRATION (OSN)-INTERFACIAL POLYMERIZATION | - |
dc.subject | POLYAMIDE MEMBRANE | - |
dc.subject | INTERFACIAL POLYMERIZATION | - |
dc.subject | SOLUBILITY PARAMETERS | - |
dc.subject | MECHANICAL-PROPERTIES | - |
dc.subject | SALINITY GRADIENTS | - |
dc.subject | WATER TRANSPORT | - |
dc.subject | TFC MEMBRANES | - |
dc.title | Overcoming the permeability-selectivity trade-off of desalination membranes via controlled solvent activation | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jung-Hyun | - |
dc.identifier.doi | 10.1016/j.memsci.2020.118870 | - |
dc.identifier.scopusid | 2-s2.0-85095815263 | - |
dc.identifier.wosid | 000609141200005 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MEMBRANE SCIENCE, v.620 | - |
dc.relation.isPartOf | JOURNAL OF MEMBRANE SCIENCE | - |
dc.citation.title | JOURNAL OF MEMBRANE SCIENCE | - |
dc.citation.volume | 620 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | REVERSE-OSMOSIS MEMBRANES | - |
dc.subject.keywordPlus | FILM COMPOSITE MEMBRANES | - |
dc.subject.keywordPlus | NANOFILTRATION (OSN)-INTERFACIAL POLYMERIZATION | - |
dc.subject.keywordPlus | POLYAMIDE MEMBRANE | - |
dc.subject.keywordPlus | INTERFACIAL POLYMERIZATION | - |
dc.subject.keywordPlus | SOLUBILITY PARAMETERS | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | SALINITY GRADIENTS | - |
dc.subject.keywordPlus | WATER TRANSPORT | - |
dc.subject.keywordPlus | TFC MEMBRANES | - |
dc.subject.keywordAuthor | Solvent activation | - |
dc.subject.keywordAuthor | Dimethyl sulfoxide | - |
dc.subject.keywordAuthor | Reverse osmosis | - |
dc.subject.keywordAuthor | Thin film composite membrane | - |
dc.subject.keywordAuthor | Polyamide | - |
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