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    Size dependence of uniformed carbon spheres in promoting graphitic carbon nitride toward enhanced photocatalysis

    Access Status
    Fulltext not available
    Authors
    Liu, S.
    Ke, J.
    Sun, Hongqi
    Liu, Jian
    Tade, Moses
    Wang, Shaobin
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Liu, S. and Ke, J. and Sun, H. and Liu, J. and Tade, M. and Wang, S. 2017. Size dependence of uniformed carbon spheres in promoting graphitic carbon nitride toward enhanced photocatalysis. Applied Catalysis B: Environmental. 204: pp. 358-364.
    Source Title
    Applied Catalysis B: Environmental
    DOI
    10.1016/j.apcatb.2016.11.048
    ISSN
    0926-3373
    School
    Department of Chemical Engineering
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DP150103026
    URI
    http://hdl.handle.net/20.500.11937/32067
    Collection
    • Curtin Research Publications
    Abstract

    Recently, graphitic carbon nitride (GCN) has been extensively employed as a metal-free, visible-light-responsive photocatalyst. The strong recombination rate of photo-induced charges and small surface area limit its wide applications. In this study, monodisperse carbon nanospheres (CS) with a uniform size were synthesized from resorcinol-formaldehyde resin using different surfactants and then loaded onto GCN via a hydrothermal treatment. It was found that the size of CS influenced the properties and photocatalytic performances of the CS/GCN hybrids. All the CS/GCN catalysts exhibited higher photocatalytic activities in degradation of water contaminants, antibiotic sulfachloropyridazine and methylene blue, under visible light irradiations. Photoluminescence spectra and photocurrent analysis indicated that hybridization with the carbon spheres at 200–500 nm will significantly reduce the electrocarrier recombination of carbon nitride while increase the photocurrent intensity, resulting in much better photocatalysis.

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