Abstract
In this study, the sulfurized (BiO)2CO3 heterostructures were synthesized using a facile liquid-phase sulfurization strategy and characterized by XRD, SEM, FT-IR, XPS, UV–Vis DRS and PL techniques. It is found that sulfurization shifts slightly XRD diffraction peaks toward to lower Bragg angle, enhances significantly the optical absorption and reduces the recombination of photogenerated electrons and holes. Based on the experimental results, it is considered that novel Bi2S3/(BiO)2CO3 heterostructures with S doping (oxygen atoms substituted by sulfur) were successfully constructed. The as-obtained photocatalysts showed excellent photocatalytic activity for degradation of reactive brilliant blue (KN-R), as compared with that of pure (BiO)2CO3 under sunlight irradiation. The enhanced photocatalytic performance may be ascribed to the role of Bi2S3/(BiO)2CO3 heterostructure and S doping, which causes high absorption efficiency of light and efficient separation of photoinduced carriers in sulfurized (BiO)2CO3.
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Acknowledgments
This work was supported by The National Natural Science Foundation of China (21476033), Program for Liaoning Excellent Tal-ents in University (LR2014013) and Cultivation Program for Excellent Talents of Science and Technology Department of Liaoning Province (No. 201402610).
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Zhao, M., Fu, Y., Ma, H. et al. Study of the sulfurized (BiO)2CO3 as efficient visible-light induced photocatalyst. J Mater Sci: Mater Electron 26, 7882–7888 (2015). https://doi.org/10.1007/s10854-015-3439-8
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DOI: https://doi.org/10.1007/s10854-015-3439-8