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    Design and synthesis of porous ZnTiO3/TiO2 nanocages with heterojunctions for enhanced photocatalytic H2 production

    Access Status
    Fulltext not available
    Authors
    Tian, H.
    Wang, S.
    Zhang, C.
    Veder, Jean-Pierre
    Pan, J.
    Jaroniec, M.
    Wang, L.
    Liu, Jian
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Tian, H. and Wang, S. and Zhang, C. and Veder, J. and Pan, J. and Jaroniec, M. and Wang, L. et al. 2017. Design and synthesis of porous ZnTiO3/TiO2 nanocages with heterojunctions for enhanced photocatalytic H2 production. Journal of Materials Chemistry A. 5 (23): pp. 11615-11622.
    Source Title
    Journal of Materials Chemistry A
    DOI
    10.1039/c7ta00148g
    ISSN
    2050-7488
    School
    Department of Physics and Astronomy
    URI
    http://hdl.handle.net/20.500.11937/54191
    Collection
    • Curtin Research Publications
    Abstract

    Despite the tremendous potential applications of hollow micro/nanostructures, their composition has been limited to mainly single chemical compounds. Inspired by recent innovations in the areas of metal organic frameworks (MOFs) and nanocoating, here, we report the rational synthesis of mesoporous ZnTiO 3 /TiO 2 hollow polyhedra (MZTHP) obtained by hydrothermal treatment of zeolitic imidazolate framework-8 (ZIF-8)@TiO 2 core-shell polyhedral particles. The subsequent calcination of these particles caused phase transformation from TiO 2 to ZnTiO 3 and eventually induced the formation of Zn 2 TiO 4 . In addition, the fabrication of these hollow structures revealed a way for the preparation of hollow polyhedral photocatalysts with Pt nanoparticles deposited onto their external surface (PHS-1) or encapsulated inside their hollow structures (PHS-2). Importantly, these two types of Pt-decorated nanoparticles are shown to exhibit an improved yet distinctly different performance for photocatalytic hydrogen production, highlighting that the photocatalytic activity correlates with the Pt location and dispersion.

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