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Acta Phys. -Chim. Sin.  2014, Vol. 30 Issue (11): 2113-2120    DOI: 10.3866/PKU.WHXB201409052
Hydrothermal Synthesis and Efficient Visible Light Photocatalytic Activity of Bi2MoO6/BiVO4 Heterojunction
LIN Xue1, GUO Xiao-Yu2, WANG Qing-Wei2, CHANG Li-Min2, ZHAI Hong-Ju2
1. Key Laboratory of Preparation and Application Environmentally Friendly Materials, Ministry of Education, Jilin Normal University, Siping 136000, Jilin Province, P. R. China;
2. College of Chemistry, Jilin Normal University, Siping 136000, Jilin Province, P. R. China
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A Bi2MoO6/BiVO4 photocatalyst with a heterojunction structure was synthesized by a one-pot hydrothermal method. Its crystal structure and microstructure were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and high-resolution transmission electron microscopy (HRTEM). The FESEM and HRTEM images indicated that Bi2MoO6 nanoparticles were loaded on the surface of BiVO4 nanoplates to form a heterojunction. The ultraviolet visible (UV-Vis) diffuse reflection spectra (DRS) showed that the resulting Bi2MoO6/BiVO4 heterojunction possessed more intensive absorption within the visible light range compared with pure Bi2MoO6 and BiVO4. These excellent structural and spectral properties endowed the Bi2MoO6/BiVO4 heterojunction with enhanced photocatalytic activity. It was found that the Rhodamine B (RhB) degradation rate with Bi2MoO6/BiVO4 was higher than that with pure BiVO4 and Bi2MoO6 under visible light (λ>420 nm) by photocatalytic measurements. The enhanced photocatalytic performance of the Bi2MoO6/BiVO4 sample can be attributed to the improved separation efficiency of photogenerated hole-electron pairs generated by the heterojunction between Bi2MoO6 and BiVO4, intensive absorption within the visible light range, and high specific surface area.

Key wordsBi2MoO6/BiVO4      Composite material      Nanostructure      Photocatalytic activity     
Received: 30 June 2014      Published: 05 September 2014
MSC2000:  O643  

The project was supported by the National Natural Science Foundation of China (21407059, 61308095) and Science Development Project of Jilin Province, China (20130522071JH, 20130102004JC, 20140101160JC).

Corresponding Authors: LIN Xue, WANG Qing-Wei     E-mail:;
Cite this article:

LIN Xue, GUO Xiao-Yu, WANG Qing-Wei, CHANG Li-Min, ZHAI Hong-Ju. Hydrothermal Synthesis and Efficient Visible Light Photocatalytic Activity of Bi2MoO6/BiVO4 Heterojunction. Acta Phys. -Chim. Sin., 2014, 30(11): 2113-2120.

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