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    Antimicrobial activity and fouling resistance of a polyvinylidene fluoride (PVDF) hollow-fiber membrane

    Year: 2017

    Journal: J. Ind. Eng. Chem., Volume 47, nov-25, page 260–271

    Authors: Koh, Eunjoo; Lee, Yong Taek

    Organizations: Korea Ministry of Environment as an Eco-Innovation Project [T112-00108-A002-3]

    Keywords: Mechanical stretching; Silver nanoparticle; Controlled silver ions release; Antimicrobial activity; Inctivation of bacteria

    The properties of a PVDF membrane were modified to yield a significant increase in antimicrobial activity and to enhance the water flux. An increase in water flux was induced by a mechanical stretching process that increased the degree of crystallinity in the polymeric membrane. The hydrophilic modification had a great influence on membrane fouling resistance and water flux. The antibacterial activity was deactivated by the sustained and continuous release of silver ions. Ag-PVA/GA-treated PVDF membranes exhibited superior antibacterial activity, with a clear zone of inhibition of 3.1 +/- 1.2 mm against Escherichia coli bacteria and bio-efficacy against colony growth. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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