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    Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals

    Access Status
    Fulltext not available
    Authors
    Wang, Yuxian
    Sun, Hongqi
    Ang, Ming
    Tade, Moses
    Wang, Shaobin
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Wang, Y. and Sun, H. and Ang, M. and Tade, M. and Wang, S. 2014. Magnetic Fe3O4/carbon sphere/cobalt composites for catalytic oxidation of phenol solutions with sulfate radicals. Chemical Engineering Journal. 245: pp. 1-9.
    Source Title
    Chemical Engineering Journal
    DOI
    10.1016/j.cej.2014.02.013
    ISSN
    1385-8947
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/17788
    Collection
    • Curtin Research Publications
    Abstract

    Magnetic carbon nanospheres (Fe3O4/CS core/shell) and their supported Co3O4 nanoparticles were synthesized using a novel one-step hydrothermal method followed by heat treatment. The nanocomposites were characterized by powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and N2 sorption isotherms. The catalytic properties of the nanocomposites in activating Oxone® for oxidation of phenol solution were investigated. Fe3O4/CS supported Co3O4 nanoparticles exhibited high activity in Oxone® activation for phenol degradation with 100% conversion within 30 min. Phenol degradation was found to follow the first order kinetics. The nanoparticles also displayed good water dispersion and magnetic separation under the magnetic field. The deactivationof catalysts was investigated and their regeneration was also proposed.

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