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원자제어저차원전자계연구단
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Polyvinylidene fluoride phase design by two-dimensional boron nitride enables enhanced performance and stability for seawater desalination

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dc.contributor.authorLee, Dongju-
dc.contributor.authorWoo, Yun Chul-
dc.contributor.authorKwang Hyun Park-
dc.contributor.authorPhuntsho, Sherub-
dc.contributor.authorTijing, Leonard D.-
dc.contributor.authorYao, Minwei-
dc.contributor.authorShim, Wang-Geun-
dc.contributor.authorShon, Ho Kyong-
dc.date.accessioned2020-12-22T05:53:07Z-
dc.date.accessioned2020-12-22T05:53:08Z-
dc.date.available2020-12-22T05:53:07Z-
dc.date.available2020-12-22T05:53:08Z-
dc.date.created2020-01-07-
dc.date.issued2020-03-
dc.identifier.issn0376-7388-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/8357-
dc.description.abstract© 2019 Elsevier B.V. The instability of polyvinylidene fluoride (PVDF) membranes in membrane distillation (MD) for seawater desalination is still a problem, despite the tremendous effort expended to resolve this issue. Here, a simple and feasible approach for improving desalination performance through the incorporation of two-dimensional boron nitride nanosheets (BNNSs) in polyvinylidene fluoride-co-hexafluoropropene (PVDF-co-HFP) electrospun nanofiber membrane (BNs-PH) is proposed as well as demonstrate its origin for fundamental understanding. The BNs-PH membrane exhibits a stable water vapor flux (18 LMH) and superior salt rejection (99.99%), even after operation for 280 h (commercial PVDF: steep decay within 28 h; neat PH: wetting within 4 h). From structural/chemical analyses, the BNNSs play a crucial role in forming favorable phases of the PH polymer crystal structure, inducing a superhydrophobic surface with greater nanoporosity and higher heterogeneity as well as enhanced mechanical properties (increase of UTS: 13.4%; modulus: 1.2%) for long-term operation. Theoretical modeling results of an air-gap MD system are consistent with our experimental results. The approach introduced in this study can be applied to other desalination systems to boost various water treatment applications-
dc.description.uri1-
dc.language영어-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectBoron nitride nanosheet-
dc.subjectDesalination-
dc.subjectElectrospinning-
dc.subjectPolyvinylidene fluoride-
dc.titlePolyvinylidene fluoride phase design by two-dimensional boron nitride enables enhanced performance and stability for seawater desalination-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000512995400047-
dc.identifier.scopusid2-s2.0-85076207562-
dc.identifier.rimsid70916-
dc.contributor.affiliatedAuthorKwang Hyun Park-
dc.identifier.doi10.1016/j.memsci.2019.117669-
dc.identifier.bibliographicCitationJOURNAL OF MEMBRANE SCIENCE, v.598, pp.117669-
dc.citation.titleJOURNAL OF MEMBRANE SCIENCE-
dc.citation.volume598-
dc.citation.startPage117669-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusMEMBRANE DISTILLATION-
dc.subject.keywordPlusELECTROSPUN MEMBRANES-
dc.subject.keywordPlusTHERMAL-CONDUCTIVITY-
dc.subject.keywordPlusNANOFIBER MEMBRANE-
dc.subject.keywordPlusCARBON NANOTUBES-
dc.subject.keywordPlusFABRICATION-
dc.subject.keywordPlusTRANSPORT-
dc.subject.keywordPlusENERGY-
dc.subject.keywordPlusPVDF-
dc.subject.keywordPlusPERVAPORATION-
dc.subject.keywordAuthorBoron nitride nanosheet-
dc.subject.keywordAuthorPolyvinylidene fluoride-
dc.subject.keywordAuthorElectrospinning-
dc.subject.keywordAuthorDesalination-
Appears in Collections:
Center for Artificial Low Dimensional Electronic Systems(원자제어 저차원 전자계 연구단) > 1. Journal Papers (저널논문)
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