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dc.contributor.authorUpadhyaya, Lakshmeesha
dc.contributor.authorChiao, Yu-Hsuan
dc.contributor.authorWickramasinghe, S. Ranil
dc.contributor.authorQian, Xianghong
dc.date.accessioned2020-11-03T12:24:33Z
dc.date.available2020-11-03T12:24:33Z
dc.date.issued2020-10-29
dc.date.submitted2020-09-18
dc.identifier.citationUpadhyaya, L., Chiao, Y.-H., Wickramasinghe, S. R., & Qian, X. (2020). Cu(I/II) Metal–Organic Frameworks Incorporated Nanofiltration Membranes for Organic Solvent Separation. Membranes, 10(11), 313. doi:10.3390/membranes10110313
dc.identifier.issn2077-0375
dc.identifier.doi10.3390/membranes10110313
dc.identifier.urihttp://hdl.handle.net/10754/665789
dc.description.abstractCopper-based metal–organic frameworks (MOFs) with different oxidation states and near-uniform particle sizes have been successfully synthesized. Mixed-matrix polyimide membranes incorporating 0.1–7 wt% of Cu(II) benzene-1,2,5-tricarboxylic acid (Cu(II)BTC), Cu(I/II)BTC and Cu(I) 1,2-ethanedisulfonic acid (EDS) (Cu(I)EDS) MOFs were fabricated via non-solvent-induced phase inversion process. These membranes are found to be solvent resistant and mechanically stable. Liquid phase nanofiltration experiments were performed to separate toluene from n-heptane at room temperature. These membranes demonstrate preferential adsorption and permeation of the aromatic toluene over aliphatic n-heptane. The amount of MOF particles incorporated, the oxidation state of the Cu ion and membrane, and barrier layer thickness have a significant impact on the separation factor. Toluene/heptane separation factor at 1.47, 1.67 and 1.79 can be obtained for membranes incorporating 7 wt% Cu(II)BTC, Cu(I/II)BTC and Cu(I)EDS respectively at room temperature.
dc.description.sponsorshipThis research was funded by the NSF Industry/University Cooperative Research Center for Membrane Science, Engineering and Technology, NSF Award IIP 1361809 and IIP 1822101. The Arkansas Research Alliance provided additional funding.
dc.publisherMDPI AG
dc.relation.urlhttps://www.mdpi.com/2077-0375/10/11/313
dc.rightsThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleCu(I/II) Metal–Organic Frameworks Incorporated Nanofiltration Membranes for Organic Solvent Separation
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.identifier.journalMembranes
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA.
dc.contributor.institutionRalph E Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, AR 72701, USA.
dc.identifier.volume10
dc.identifier.issue11
dc.identifier.pages313
kaust.personUpadhyaya, Lakshmeesha
dc.date.accepted2020-10-23
refterms.dateFOA2020-11-03T12:31:54Z


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This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
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