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    Block copolymer hollow fiber membranes with catalytic activity and pH-response

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    Type
    Article
    Authors
    Hilke, Roland
    Neelakanda, Pradeep
    Madhavan, Poornima cc
    Vainio, Ulla
    Behzad, Ali Reza
    Sougrat, Rachid cc
    Nunes, Suzana Pereira cc
    Peinemann, Klaus-Viktor cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Advanced Nanofabrication, Imaging and Characterization Core Lab
    Biological and Environmental Sciences and Engineering (BESE) Division
    Chemical Engineering Program
    Core Labs
    Environmental Science and Engineering Program
    Imaging and Characterization Core Lab
    Nanostructured Polymeric Membrane Lab
    Physical Science and Engineering (PSE) Division
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2013-08-05
    Online Publication Date
    2013-08-05
    Print Publication Date
    2013-08-14
    Permanent link to this record
    http://hdl.handle.net/10754/562907
    
    Metadata
    Show full item record
    Abstract
    We fabricated block copolymer hollow fiber membranes with self-assembled, shell-side, uniform pore structures. The fibers in these membranes combined pores able to respond to pH and acting as chemical gates that opened above pH 4, and catalytic activity, achieved by the incorporation of gold nanoparticles. We used a dry/wet spinning process to produce the asymmetric hollow fibers and determined the conditions under which the hollow fibers were optimized to create the desired pore morphology and the necessary mechanical stability. To induce ordered micelle assembly in the doped solution, we identified an ideal solvent mixture as confirmed by small-angle X-ray scattering. We then reduced p-nitrophenol with a gold-loaded fiber to confirm the catalytic performance of the membranes. © 2013 American Chemical Society.
    Citation
    Hilke, R., Pradeep, N., Madhavan, P., Vainio, U., Behzad, A. R., Sougrat, R., … Peinemann, K.-V. (2013). Block Copolymer Hollow Fiber Membranes with Catalytic Activity and pH-Response. ACS Applied Materials & Interfaces, 5(15), 7001–7006. doi:10.1021/am401163h
    Publisher
    American Chemical Society (ACS)
    Journal
    ACS Applied Materials & Interfaces
    DOI
    10.1021/am401163h
    PubMed ID
    23865535
    ae974a485f413a2113503eed53cd6c53
    10.1021/am401163h
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Advanced Membranes and Porous Materials Research Center; Environmental Science and Engineering Program; Imaging and Characterization Core Lab; Physical Science and Engineering (PSE) Division; Chemical Engineering Program; Water Desalination and Reuse Research Center (WDRC)

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