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    Visible light photocatalytic degradation of organics on nanoparticles of bi-metallic oxides

    Access Status
    Fulltext not available
    Authors
    Ullah, R
    Sun, Hongqi
    Ang, Ming
    Tade, Moses
    Wang, Shaobin
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Ullah, R. and Sun, H. and Ang, M. and Tade, M. and Wang, S. 2012. Visible light photocatalytic degradation of organics on nanoparticles of bi-metallic oxides. Separation and Purification Technology. 89: pp. 98-106.
    Source Title
    Separation and Purification Technology
    DOI
    10.1016/j.seppur.2012.01.014
    ISSN
    13835866
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/25131
    Collection
    • Curtin Research Publications
    Abstract

    Various bi-metallic oxides, Bi2WO6, AgVO3, AgTaO3, BiTaO4, Cd2Ta2O7, InTaO4, CoTa2O6, CeTaO4 and EuTaO4, were synthesized by a solution method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), UV–vis diffuse reflectance spectroscopy, and Fourier transform infrared spectroscopy (FTIR). All the materials were tested for photocatalytic decomposition of VOCs such as aqueous methylene blue and gaseous toluene. Results indicated that tantalum based ternary compounds like Cd2Ta2O7, AgTaO3 and BiTaO4 could decompose gaseous toluene under visible light irradiation at a much faster rate than TiO2. These compounds also demonstrated very stable activity under UV light irradiation in a longer period of time. Tantalum based compounds could also decompose methylene blue under UV–vis light irradiation but they exhibited lower activity than Bi2WO6 and AgVO3.

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