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    Ultem®/ZIF-8 mixed matrix hollow fiber membranes for CO2/N2 separations

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    Type
    Article
    Authors
    Dai, Ying
    Johnson, J.R.
    Karvan, Oğuz
    Sholl, David S.
    Koros, W.J.
    KAUST Grant Number
    KUS-I1-011-21
    Date
    2012-05
    Permanent link to this record
    http://hdl.handle.net/10754/600115
    
    Metadata
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    Abstract
    Organic-inorganic hybrid (mixed matrix) membranes can potentially extend the separation performance of traditional polymeric materials while maintaining processing convenience. Although many dense films studies have been reported, there have been few reported cases of these materials being successfully extended to asymmetric hollow fibers. In this work we report the first successful production of mixed matrix asymmetric hollow fiber membranes containing metal-organic-framework (MOF) ZIF-8 fillers. Specifically, we have incorporated ZIF-8 into a polyetherimide (Ultem ® 1000) matrix and produced dual-layer asymmetric hollow fiber membranes via the dry jet-wet quench method. The outer separating layer of these composite fibers contains 13wt% (17vol%) of ZIF-8 filler. These membranes have been tested over a range of temperatures and pressures for a variety of gas pairs. An increase in separation performance for the CO 2/N 2 gas pairs was observed for both pure gas and mixed gas feeds. © 2012 Elsevier B.V.
    Citation
    Dai Y, Johnson JR, Karvan O, Sholl DS, Koros WJ (2012) Ultem®/ZIF-8 mixed matrix hollow fiber membranes for CO2/N2 separations. Journal of Membrane Science 401-402: 76–82. Available: http://dx.doi.org/10.1016/j.memsci.2012.01.044.
    Sponsors
    The authors would like to thank Dr. Yougui Huang for his assistance with XRD measurements, Liren Xu for his assistance with SEM imaging and Wei Long for her assistance with XPS characterization. Additionally, the authors would like to acknowledge the DOE ARPA-E IMPACCT Program for financial support under contract DE-AR0000074. This publication is based in part on work supported by Award No. KUS-I1-011-21 made by King Abdullah University of Science and Technology (KAUST).
    Publisher
    Elsevier BV
    Journal
    Journal of Membrane Science
    DOI
    10.1016/j.memsci.2012.01.044
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.memsci.2012.01.044
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