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    Effect of formation of micro reaction locations (MRLs) on properties of polyvinylidene fluoride (PVDF) membranes

    Access Status
    Fulltext not available
    Authors
    Zhang, Y.
    Sun, S.
    Wei, S.
    Liu, Shaomin
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Zhang, Y. and Sun, S. and Wei, S. and Liu, S. 2018. Effect of formation of micro reaction locations (MRLs) on properties of polyvinylidene fluoride (PVDF) membranes. Journal of Membrane Science. 553: pp. 117-130.
    Source Title
    Journal of Membrane Science
    DOI
    10.1016/j.memsci.2018.02.014
    ISSN
    0376-7388
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/67163
    Collection
    • Curtin Research Publications
    Abstract

    Micro reaction locations (MRLs) formed in membrane impact the integrated properties of membrane. In this paper, in order to form effective MRLs in PVDF membrane which performs attractive properties, Y x Fe y Zr 1-x-y O 2 solid superacid coated TiO 2 nanotubes (MSYFZr-TiNs) modified by sodium dodecylbenzene sulfonate (SDBS) are embedded into PVDF to prepare MSYFZr-TiNs/PVDF composite membranes with effective MRLs inside channels and on the surface of membranes. MSYFZr-TiNs and MSYFZr-TiNs/PVDF composite membranes are characterized and tested. The results show that Y x Fe y Zr 1-x-y O 2 solid superacid with stable tetragonal phase reaches a hammett acidity of − 16.468, decomposing inorganic pollutants or restraining their formation inside channels and surface. The MSYFZr-TiNs/PVDF composite membranes with MRLs perform attractive anti-compaction and anti-fouling properties through MRLs. The water contact angle, stable degradation ratios for oil and Fe 2 O 3 are 36.5°, 13.2% and 12.1%, respectively. Furthermore, when treating oily wastewater, the membrane permeate flux and oil retention ratio are 354 L m −2 h −1 and 93.48%, respectively. Therefore, MSYFZr-TiNs/PVDF composite membranes will possess desirable application in water cleaning.

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