Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.memsci.2018.11.060
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dc.titleMixed matrix membranes containing MOF@COF hybrid fillers for efficient CO2/CH4 separation
dc.contributor.authorCheng, Youdong
dc.contributor.authorYing, Yunpan
dc.contributor.authorZhai, Linzhi
dc.contributor.authorLiu, Guoliang
dc.contributor.authorDong, Jinqiao
dc.contributor.authorWang, Yuxiang
dc.contributor.authorChristopher, Mark Prasath
dc.contributor.authorLong, Sichang
dc.contributor.authorWang, Yaxin
dc.contributor.authorZhao, Dan
dc.date.accessioned2020-06-09T07:17:47Z
dc.date.available2020-06-09T07:17:47Z
dc.date.issued2019-03-01
dc.identifier.citationCheng, Youdong, Ying, Yunpan, Zhai, Linzhi, Liu, Guoliang, Dong, Jinqiao, Wang, Yuxiang, Christopher, Mark Prasath, Long, Sichang, Wang, Yaxin, Zhao, Dan (2019-03-01). Mixed matrix membranes containing MOF@COF hybrid fillers for efficient CO2/CH4 separation. JOURNAL OF MEMBRANE SCIENCE 573 : 97-106. ScholarBank@NUS Repository. https://doi.org/10.1016/j.memsci.2018.11.060
dc.identifier.issn03767388
dc.identifier.issn18733123
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/169556
dc.description.abstract© 2018 Elsevier B.V. Membrane technology has aroused great attention for gas separations due to its high energy efficiency, small capital investment, easy and continuous operation. Mixed matrix membranes (MMMs) constructed from a continuous polymer phase and a dispersed filler phase offer new opportunities to achieve a breakthrough in fabricating high-performance membranes. Metal–organic frameworks (MOFs) have been regarded as potential fillers to boost the MMM separation performance. However, MOFs occasionally exhibit limited compatibility with the polymer matrixes owing to their partially inorganic structure and tendency of agglomeration in the membranes. Here, an interfacial design strategy is demonstrated by coating size-selective MOF cores with covalent organic framework (COF) layers to construct MOF@COF hybrids as fillers in MMMs for enhanced polymer-filler compatibility. The pure organic COF layers exhibit high affinity to the polymer matrix, thereby preventing the formation of nonselective interfacial voids and alleviating filler agglomeration. With the incorporation of only 5 wt% of MOF@COF fillers, the resultant MMM exhibits 48% and 79% enhancements in CO2 permeability and CO2/CH4 selectivity, respectively, with better operational stability compared to that of the pure polymeric membrane. These results reveal a novel filler design strategy for the tailored synthesis of high-performance MMMs for natural gas and biogas purification.
dc.language.isoen
dc.publisherELSEVIER
dc.sourceElements
dc.subjectScience & Technology
dc.subjectTechnology
dc.subjectPhysical Sciences
dc.subjectEngineering, Chemical
dc.subjectPolymer Science
dc.subjectEngineering
dc.subjectMixed matrix membranes
dc.subjectMetal-organic frameworks
dc.subjectCovalent organic frameworks
dc.subjectCO2/CH4 separation
dc.subjectClean energy
dc.subjectMETAL-ORGANIC FRAMEWORK
dc.subjectGAS SEPARATION
dc.subjectINTRINSIC MICROPOROSITY
dc.subjectPOLYMER
dc.subjectPERFORMANCE
dc.subjectPERMEABILITY
dc.subjectPOLYSULFONE
dc.subjectNANOSHEETS
dc.subjectSTABILITY
dc.subjectGRAPHENE
dc.typeArticle
dc.date.updated2020-06-08T10:12:28Z
dc.contributor.departmentDEPT OF CHEMICAL & BIOMOLECULAR ENGG
dc.description.doi10.1016/j.memsci.2018.11.060
dc.description.sourcetitleJOURNAL OF MEMBRANE SCIENCE
dc.description.volume573
dc.description.page97-106
dc.published.statePublished
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