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Issue 4, 2013
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Monodispersed Ag3PO4 nanocrystals loaded on the surface of spherical Bi2MoO6 with enhanced photocatalytic performance

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Abstract

Spherical Bi2MoO6 nanoarchitectures with scale of 500 nm–2 μm were prepared by a solvothermal reaction using bismuth nitrate and ammonium molybdate as precursors. Ag3PO4 nanoparticles were then deposited onto the surface of Bi2MoO6via a facile deposition–precipitation technique. The photocatalytic tests display that the Ag3PO4/Bi2MoO6 nanocomposites possess a much higher rate for degradation of rhodamine B and methylene blue than the pure Ag3PO4 nanoparticles and Bi2MoO6 under visible light. The catalytic activity of the composite photocatalysts is greatly influenced by the loading level of Ag3PO4. The 50 mol% Ag3PO4-loaded Bi2MoO6 spheres exhibit the highest photocatalytic activity in both the decolorization of RhB and MB. The observed improvement in photocatalytic activity is associated with the extended absorption in the visible light region resulting from the Ag3PO4 nanoparticles, and the effective separation of photogenerated carriers at the Ag3PO4/Bi2MoO6 interfaces. In addition, the composite can be easily reclaimed by sedimentation without any loss of its stability. Moreover, the tests of radical scavengers confirmed that h+ and ˙OH were the main reactive species for the degradation of RhB.

Graphical abstract: Monodispersed Ag3PO4 nanocrystals loaded on the surface of spherical Bi2MoO6 with enhanced photocatalytic performance

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Publication details

The article was received on 22 Jul 2012, accepted on 09 Oct 2012 and first published on 10 Oct 2012


Article type: Paper
DOI: 10.1039/C2DT31634J
Citation: Dalton Trans., 2013,42, 1094-1101
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    Monodispersed Ag3PO4 nanocrystals loaded on the surface of spherical Bi2MoO6 with enhanced photocatalytic performance

    Y. Xu and W. Zhang, Dalton Trans., 2013, 42, 1094
    DOI: 10.1039/C2DT31634J

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