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Enhanced photocatalytic activity of In2O3-decorated TiO2

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Abstract

Titania (TiO2)-based photocatalysts decorated with different amounts of indium oxide (In2O3) were prepared by a pore impregnating method and characterized by the Brunauer–Emmett–Teller (BET) method, X-ray diffraction (XRD), UV–Vis diffuse reflectance spectroscopy (DRS), and X-ray photoelectron spectroscopy (XPS). The separation efficiency of photogenerated charges was investigated using benzoquinone (BQ) as scavenger. The activities of the photocatalysts were evaluated by decolorization of methyl orange (MO) aqueous solution under ultraviolet-light irradiation. Compared to TiO2, In2O3/TiO2 composites show improved photocatalytic performance due to the coupling effect of TiO2 and In2O3, which greatly improves the separation of photogenerated electrons and holes.

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Acknowledgements

This project was supported financially by the program of Science and Technology Department of Sichuan province (No. 2013JY0080), the Program of Education Department of Sichuan province (No. 11ZA27 and 11ZB243), Research Fund Projects of Sichuan University of Science and Engineering (2012PY05), the project of Zigong city (2011G042 and 10X03), Construct Program of the Discipline in Sichuan University of Science and Engineering and the Opening Project of Key Laboratory of Green Catalysis of Sichuan Institutes of High Education (No. LZJ1202 and LYJ1203).

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Authors and Affiliations

  1. Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, College of Chemistry and Pharmaceutical Engineering, Sichuan University of Science and Engineering, Zigong, 643000, P.R. China

    Junbo Zhong, Jianzhang Li, Jun Zeng, Xiyang He, Shengtiang Huang, Weidong Jiang & Minjiao Li

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  1. Junbo Zhong
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  2. Jianzhang Li
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  3. Jun Zeng
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  7. Minjiao Li
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Correspondence to Junbo Zhong.

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Zhong, J., Li, J., Zeng, J. et al. Enhanced photocatalytic activity of In2O3-decorated TiO2 . Appl. Phys. A 115, 1231–1238 (2014). https://doi.org/10.1007/s00339-013-7965-z

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  • DOI: https://doi.org/10.1007/s00339-013-7965-z

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