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    Synthesis of doped BiNbO4 photocatalysts for removal of gaseous volatile organic compounds with artificial sunlight

    Access Status
    Fulltext not available
    Authors
    Ullah, R
    Ang, Ming
    Tade, Moses
    Wang, Shaobin
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Ullah, R. and Ang, M. and Tade, M. and Wang, S. 2012. Synthesis of doped BiNbO4 photocatalysts for removal of gaseous volatile organic compounds with artificial sunlight. Chemical Engineering Journal. 185-186: pp. 328-336.
    Source Title
    Chemical Engineering Journal
    DOI
    10.1016/j.cej.2012.01.058
    ISSN
    13858947
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/18795
    Collection
    • Curtin Research Publications
    Abstract

    BiNbO4, metal-doped and N-doped BiNbO4 catalysts were synthesized at lower sintering temperature of 700 °C using a solution method. The materials were characterized by XRD, SEM, FTIR, and diffuse reflectance spectroscopy, and were tested in photocatalytic decomposition of gaseous toluene under either UV or visible light. Both undoped and metal ion (Ba, Ga, Sn, La, and Al) doped BiNbO4 have multiphase crystalline structures; while the nitrogen doped BiNbO4 has only triclinic structure. Among the materials, BiNbO4:Ga showed higher performance, much better than a commercial TiO2 (P25) and could decompose more than 50% toluene (100 ppm) in initial 2 h at UV irradiation. However, BiNbO4:Ba showed better activity than others and degraded 12% toluene within initial 2 h under visible light irradiation. All the BiNbO4 materials also exhibited quite stable performance in UV or visible light.

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