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    Photochemical degradation of phenol solutions on Co3O4 nanorods with sulfate radicals

    Access Status
    Fulltext not available
    Authors
    Wang, Yuxian
    Zhou, Li
    Duan, X.
    Sun, Hongqi
    Tin, E.
    Jin, W.
    Wang, Shaobin
    Date
    2015
    Type
    Journal Article
    
    Metadata
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    Citation
    Wang, Y. and Zhou, L. and Duan, X. and Sun, H. and Tin, E. and Jin, W. and Wang, S. 2015. Photochemical degradation of phenol solutions on Co3O4 nanorods with sulfate radicals. Catalysis Today. 258 (Part 2): pp. 576-584.
    Source Title
    Catalysis Today
    DOI
    10.1016/j.cattod.2014.12.020
    ISSN
    0920-5861
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/16881
    Collection
    • Curtin Research Publications
    Abstract

    Photosensitive Co3O4 nanorods were synthesized by a facile one-pot hydrothermal method followed by calcination at different temperatures. The crystal structure, morphology, thermal and textural properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and nitrogen sorption isotherms. The performances of the samples in catalytic activation of peroxymonosulfate (PMS) for phenol degradation were found to be dependent on the calcination temperature. Electron paramagnetic resonance (EPR) and classical quenching tests were applied to investigate the mechanism of PMS activation and phenol oxidation. At a proper amount of PMS loading, a synergistic effect of photo- and chemical-oxidation was observed. This study suggested that utilization of sunlight can greatly reduce the chemical consumption in environmental remediation thus providing a cost-effective and more environmentally friendly approach for water treatment.

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