A Polysulfone/Cobalt Metal–Organic Framework Nanocomposite Membrane with Enhanced Water Permeability and Fouling Resistance

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dc.citation.firstpage3532
dc.citation.issueNumber5
dc.citation.journalTitleACS Applied Polymer Materials
dc.citation.lastpage3542
dc.citation.volumeNumber4
dc.contributor.authorGil, Eva
dc.contributor.authorHuang, Xiaochuan
dc.contributor.authorZuo, Kuichang
dc.contributor.authorKim, Jun
dc.contributor.authorRincón, Susana
dc.contributor.authorRivera, José María
dc.contributor.authorRanjbari, Kiarash
dc.contributor.authorPerreault, François
dc.contributor.authorAlvarez, Pedro
dc.contributor.authorZepeda, Alejandro
dc.contributor.authorLi, Qilin
dc.contributor.orgNanosystems Engineering Research Center for Nanotechnology Enabled Water Treatment
dc.date.accessioned2023-02-20T17:17:47Z
dc.date.available2023-02-20T17:17:47Z
dc.date.issued2022
dc.description.abstractUltrafiltration membranes are widely used in water and wastewater applications. The two most important membrane characteristics that determine the cost-effectiveness of an ultrafiltration membrane process are membrane permeability and fouling resistance. Metal–organic frameworks (MOFs) have been intensively investigated as highly selective sorbents and superior (photo) catalysts. Their potential as membrane modifiers has also received attention recently. In this study, a non-functionalized, water-stable, nanocrystalline mixed ligand octahedral MOF containing carboxylate and amine groups with a cobalt metal center (MOF-Co) was incorporated into polysulfone (PSF) ultrafiltration (UF) membranes at a very low nominal concentration (2 and 4 wt %) using the conventional phase inversion method. The resultant PSF/MOF-Co_4% membrane exhibited water permeability up to 360% higher than of the control PSF membrane without sacrificing the selectivity of the membrane, which had not been previously achieved by an unmodified MOF. In addition, the PSF/MOF-Co_4% membrane showed strong resistance to fouling by natural organic matter (NOM), with 87 and 83% reduction in reversible and irreversible NOM fouling, respectively, compared to the control PSF membrane. This improvement was attributed to the increases in membrane porosity and surface hydrophilicity resulting from the high hydrophilicity of the MOF-Co. The capability of increasing membrane water permeability and fouling resistance without compromising membrane selectivity makes the MOF-Co and potentially other hydrophilic MOFs excellent candidates as membrane additives.
dc.identifier.citationGil, Eva, Huang, Xiaochuan, Zuo, Kuichang, et al.. "A Polysulfone/Cobalt Metal–Organic Framework Nanocomposite Membrane with Enhanced Water Permeability and Fouling Resistance." <i>ACS Applied Polymer Materials,</i> 4, no. 5 (2022) American Chemical Society: 3532-3542. https://doi.org/10.1021/acsapm.2c00132.
dc.identifier.doihttps://doi.org/10.1021/acsapm.2c00132
dc.identifier.urihttps://hdl.handle.net/1911/114461
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society.
dc.subject.keywordmetal?organic framework (MOF)
dc.subject.keywordnanocomposite membrane
dc.subject.keywordmembrane permeability
dc.subject.keywordorganic fouling
dc.subject.keywordmixed matrix membranes (MMMs)
dc.titleA Polysulfone/Cobalt Metal–Organic Framework Nanocomposite Membrane with Enhanced Water Permeability and Fouling Resistance
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpost-print
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