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Citation: WU Zi-Wei, LÜ Xiao-Meng, SHEN Jia-Yu, XIE Ji-Min. BiFeO3 Nanoparticles:Space Selective Photochemical Reduction of Ag and Photocatalytic Activity[J]. Chinese Journal of Inorganic Chemistry, ;2014, 30(3): 492-498. doi: 10.11862/CJIC.2014.057 shu

BiFeO3 Nanoparticles:Space Selective Photochemical Reduction of Ag and Photocatalytic Activity

  • 1.

    School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China

  • Received Date: 30 July 2013
    Available Online: 9 October 2013

    Fund Project: 国家自然科学基金(No.21003065)资助项目。 (No.21003065)

  • Silver-modified BiFeO3 nanoparticles were prepared by the sol-gel and photodeposition method. The composites were characterized by FESEM, XRD, XPS, FTIR, UV-Vis/DRS. The effect of the space selective photochemical reaction of ferromagnetic material was investigated on structure, morphology and spectral properties of the composites under light irradiation (λ≥365 nm). The photocatalytic activity of the nanoparticle was tested using rhodamine B as the model reaction under visible-light irradiation. The results show that the modification not only enhances the ultraviolet-visible light response of BiFeO3, but also inhibits the photocorrosion phenomenon of BiFeO3 and improves the stability of the catalyst. The decolorization of rhodamine B is 74% with fresh pure BiFeO3 under visible light within 12 h, however, the decolorization of rhodamine B is about 90% with Ag-BiFeO3 nano-composites within 6 h, and the catalytic performance of Ag-BiFeO3 nano-composites remains almost the same after three cycles.
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