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    Efficient photocatalytic reduction of aqueous Cr(VI) over flower-like SnIn4S8 microspheres under visible light illumination

    Access Status
    Fulltext not available
    Authors
    Wang, L.
    Li, Xin Yong
    Teng, W.
    Zhao, Q.
    Shi, Y.
    Yue, R.
    Chen, Y.
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Wang, L. and Li, X.Y. and Teng, W. and Zhao, Q. and Shi, Y. and Yue, R. and Chen, Y. 2013. Efficient photocatalytic reduction of aqueous Cr(VI) over flower-like SnIn4S8 microspheres under visible light illumination. Journal of Hazardous Materials. 244-245: pp. 681-688.
    Source Title
    Journal of Hazardous Materials
    DOI
    10.1016/j.jhazmat.2012.10.062
    ISSN
    0304-3894
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/32413
    Collection
    • Curtin Research Publications
    Abstract

    Photocatalytic reduction of aqueous Cr(VI) was successfully achieved on nanostructured SnIn4S8. The SnIn4S8 particles with flower-like nanostructure were synthesized via a facile solvothermal method. UV-vis diffuse reflectance spectra (DRS) indicated that the SnIn4S8 particles had strong absorption in visible region and the band gap was estimated to be from 2.27 to 2.35eV. The photocatalytic reduction of aqueous Cr(VI) by flower-like SnIn4S8 was evaluated under visible light (?>400nm) irradiation. The polyvinyl pyrrolidone (PVP) assisted SnIn4S8 sample exhibits excellent removal efficiency of Cr(VI) (~97%) and good photocatalytic stability. The predominant photocatalytic activity is due to its large surface area, strong absorption in visible-light region and excellent charge separation characteristics. © 2012 Elsevier B.V.

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