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    Co-SBA-15 for heterogeneous oxidation of phenol with sulfate radical for wastewater treatment

    Access Status
    Fulltext not available
    Authors
    Shukla, Pradeep
    Sun, Hongqi
    Wang, Shaobin
    Ang, Ha Ming
    Tade, Moses
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Shukla, Pradeep and Sun, Hongqi and Wang, Shaobin and Ang, H. Ming and Tade, Moses O. 2011. Co-SBA-15 for heterogeneous oxidation of phenol with sulfate radical for wastewater treatment. Catalysis Today. 175: pp. 380-385.
    Source Title
    Catalysis Today
    DOI
    10.1016/j.cattod.2011.03.005
    ISSN
    09205861
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/5149
    Collection
    • Curtin Research Publications
    Abstract

    Mesoporous silica SBA-15 supported cobalt catalysts were prepared by co-condensation during SBA-15 synthesis, using three different Co(II) precursor salts, chloride (Cl), acetate (Ac) and nitrate (N). The physicochemical properties of the catalysts were characterized by several techniques, such as XRD, SEM (EDS), TEM, and FT-IR. It was found that Co3O4 was formed in SBA-15 and would effectively activate peroxymonosulfate to produce sulfate radicals for phenoloxidation in heterogeneous solutions. The Co precursors affected the physicochemical property, activity and stability of the catalysts. In heterogeneous reactions, the effects of catalyst loading, peroxymonosulfate concentration and reaction temperature on phenol degradation were investigated. The heterogeneousphenol degradation reactions followed zero order kinetics and the activation energies were 81.4, 67.4 and 67.4 kJ/mol for Co/SBA-15-Cl, Co/SBA-15-Ac, and Co/SBA-15-N, respectively.

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