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Synthesis and characterization of novel InVO4–TiO2 thin films using the low temperature sol

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Abstract

The InVO4 sol was obtained by a mild hydrothermal treatment (the precursor precipitation solution at 423 K, for 4 h). Novel visible-light activated photocatalytic InVO4–TiO2 thin films were synthesized through a sol–gel dipping method from the composite sol, which was obtained by mixing the low temperature InVO4 sol and TiO2 sol. The photocatalytic activities of the new InVO4–TiO2 thin films under visible light irradiation were investigated by the photocatalytic discoloration of methyl orange aqueous solution. The thin films were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and UV–Vis absorption spectroscopy (UV–Vis). The results revealed that the InVO4 doped thin films enhanced the methyl orange degradation rate under visible light irradiation, 3.0 wt% InVO4–TiO2 thin films reaching 80.1% after irradiated for 15 h.

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Acknowledgments

This project was supported by the Doctor Foundation (No. 20060055001) and China Postdoctoral Science Foundation (No. 20070410295).

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Authors and Affiliations

  1. Taiyuan Urban Vocational College, 030027, Shanxi, China

    Gai Lan Li

  2. School of Materials Science and Engineering, Taiyuan University of Science and Technology, 030024, Shanxi, China

    Yu Ming Tian

  3. Department of Electronic Science and Technology, Tianjin University, 300072, Tianjin, China

    Ping Zhang

Authors
  1. Gai Lan Li
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  2. Yu Ming Tian
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  3. Ping Zhang
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Correspondence to Ping Zhang.

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Li, G.L., Tian, Y.M. & Zhang, P. Synthesis and characterization of novel InVO4–TiO2 thin films using the low temperature sol. J Sol-Gel Sci Technol 52, 15–18 (2009). https://doi.org/10.1007/s10971-009-2036-9

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  • DOI: https://doi.org/10.1007/s10971-009-2036-9

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