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    Complexation induced phase separation: preparation of composite membranes with a nanometer thin dense skin loaded with metal ions

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    acsnanolett5b00275.pdf
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    Type
    Article
    Authors
    Villalobos, Luis Francisco cc
    Karunakaran, Madhavan
    Peinemann, Klaus-Viktor cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Chemical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2015-04-27
    Online Publication Date
    2015-04-27
    Print Publication Date
    2015-05-13
    Permanent link to this record
    http://hdl.handle.net/10754/550724
    
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    Abstract
    We present the development of a facile phase-inversion method for forming asymmetric membranes with a precise high metal ion loading capacity in only the dense layer. The approach combines the use of macromolecule-metal intermolecular complexes to form the dense layer of asymmetric membranes with nonsolvent-induced phase separation to form the porous support. This allows the independent optimization of both the dense layer and porous support while maintaining the simplicity of a phase-inversion process. Moreover, it facilitates control over (i) the thickness of the dense layer throughout several orders of magnitude—from less than 15 nm to more than 6 μm, (ii) the type and amount of metal ions loaded in the dense layer, (iii) the morphology of the membrane surface, and (iv) the porosity and structure of the support. This simple and scalable process provides a new platform for building multifunctional membranes with a high loading of well-dispersed metal ions in the dense layer.
    Citation
    Complexation induced phase separation: preparation of composite membranes with a nanometer thin dense skin loaded with metal ions 2015:150421125443000 Nano Letters
    Publisher
    American Chemical Society (ACS)
    Journal
    Nano Letters
    DOI
    10.1021/acs.nanolett.5b00275
    PubMed ID
    25897684
    Additional Links
    http://pubs.acs.org/doi/abs/10.1021/acs.nanolett.5b00275
    ae974a485f413a2113503eed53cd6c53
    10.1021/acs.nanolett.5b00275
    Scopus Count
    Collections
    Articles; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Chemical Engineering Program

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