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    Heterogeneous Catalytic Oxidation of Aqueous Phenol on Red Mud-Supported Cobalt Catalysts

    Access Status
    Fulltext not available
    Authors
    Muhammad, Syaifullah
    Saputra, Edy
    Sun, Hongqi
    Ang, Ming
    Tade, Moses
    Wang, Shaobin
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Muhammad, S. and Saputra, E. and Sun, H. and Ang, M. and Tade, M. and Wang, S. 2012. Heterogeneous Catalytic Oxidation of Aqueous Phenol on Red Mud-Supported Cobalt Catalysts. Industrial and Engineering Chemistry Research. 51 (47): pp. 15351-15359.
    Source Title
    Industrial and Engineering Chemistry Research
    DOI
    10.1021/ie301639t
    ISSN
    08885885
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/38908
    Collection
    • Curtin Research Publications
    Abstract

    Red mud (RM), an industrial waste from the alumina refinery industry, was used as a support for preparation of Co-oxide-based catalysts (Co/RM). The samples were characterized by N2 adsorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and UV-vis diffusive reflectance spectroscopy. The heterogeneous catalytic activity was evaluated in aqueous phenol degradation using peroxymonosulphate (PMS) as an oxidizing agent. It was found that Co3O4 particles were highly dispersed on the RM surface and that pretreatment of the red mud (RM-T) would significantly influence catalytic activity. Co/RM-T catalysts exhibited high effectiveness in heterogeneous activation of PMS to produce sulfate radicals for phenol degradation compared with Co/RM-NT. Phenol degradation followed first-order kinetics, and activation energies on Co/RM-T and Co/RM-NT are 46.2 and 47.0 kJ/mol, respectively.

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