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    α-MnO 2 activation of peroxymonosulfate for catalytic phenol degradation in aqueous solutions

    Access Status
    Fulltext not available
    Authors
    Saputra, Edy
    Muhammad, Syaifullah
    Sun, Hongqi
    Patel, A.
    Shukla, P.
    Zhu, Z.
    Wang, Shaobin
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Saputra, E. and Muhammad, S. and Sun, H. and Patel, A. and Shukla, P. and Zhu, Z. and Wang, S. 2012. α-MnO 2 activation of peroxymonosulfate for catalytic phenol degradation in aqueous solutions. Catalysis Communications. 26: pp. 144-148.
    Source Title
    Catalysis Communications
    DOI
    10.1016/j.catcom.2012.05.014
    ISSN
    15667367
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/27013
    Collection
    • Curtin Research Publications
    Abstract

    Several α-MnO2 catalysts in the forms of nanosphere, nanorod and nanowire were synthesized, characterized and tested in heterogeneous activation of peroxymonosulfate for phenol degradation in aqueous solutions. The α-MnO2 materials exhibited varying activities in activation of peroxymonosulfate to produce sulfate radicals for phenol degradation depending on structure and morphology. Crystalline structure of MnO2 is more important than porous structure in influencing the activity because crystalline α-MnO2 exhibited higher phenol degradation. Nanowired α-MnO2 presented the highest activity with stable performance while the mesoporous α-MnO2 nanosphere with amorphous structure presented the lowest activity and stability. Kinetic study showed that phenol degradation on α-MnO2 followed the first order kinetics.

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