Facet-Dependent Photocatalytic Properties of AgBr Nanocrystals

Authors

  • Hua Wang,

    1. School of Chemistry and Environment, Beihang University, Beijing 100191, China
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  • Jutong Yang,

    1. School of Chemistry and Environment, Beihang University, Beijing 100191, China
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  • Xiulin Li,

    1. School of Chemistry and Environment, Beihang University, Beijing 100191, China
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  • Hongzhou Zhang,

    1. School of Physics, Center for Research on Adaptive Nanostructures and Nanodevices (CRANN), CRANN Advanced Microscopy Laboratory (CRANN AML), Trinity College Dublin, Dublin 2, Ireland
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  • Jinghong Li,

    Corresponding author
    1. Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus, Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
    • Department of Chemistry, Beijing Key Laboratory for Analytical Methods and Instrumentation, Key Laboratory of Bioorganic Phosphorus, Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
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  • Lin Guo

    Corresponding author
    1. School of Chemistry and Environment, Beihang University, Beijing 100191, China
    • School of Chemistry and Environment, Beihang University, Beijing 100191, China.
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Abstract

original image

Polyhedral AgBr nanocrystals, evolved from cubes through truncated cubes and finally to high-symmetry octahedra, which corresponds to a progressive shrinkage of exposed {100} facets and enlargement of exposed {111} facets, are prepared by facile precipitation reactions. The as- prepared AgBr nanocrystals exhibit facet-dependent catalytic properties, with the {111}-dominated octahedra showing the highest photocatalytic activities.

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