Preparation and characterization of high photoactive TiO2 catalyst using the UV irradiation-induced sol-gel method

Jianhua Liu, Rong Yang, Songmei Li

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    Jianhua Liu, Rong Yang, and Songmei Li, Preparation and characterization of high photoactive TiO2 catalyst using the UV irradiation-induced sol-gel method, J. Univ. Sci. Technol. Beijing , 13(2006), No. 4, pp.350-354. https://dx.doi.org/10.1016/S1005-8850(06)60072-8
    Jianhua Liu, Rong Yang, and Songmei Li, Preparation and characterization of high photoactive TiO2 catalyst using the UV irradiation-induced sol-gel method, J. Univ. Sci. Technol. Beijing , 13(2006), No. 4, pp.350-354. https://dx.doi.org/10.1016/S1005-8850(06)60072-8
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    Preparation and characterization of high photoactive TiO2 catalyst using the UV irradiation-induced sol-gel method

    • School of Materials Science and Engineering, Beijing University of Aeronautics & Astronautics, Beijing 100083, China

      通信作者:

      Jianhua Liu E-mail: liujh@buaa.edu.cn

    中文摘要

    High photoactive TiO2 catalyst was prepared using the sol-gel method through UV irradiation during the formation stage of nuclei. The surface morphology and microstructure of the prepared catalyst were characterized using scanning electron microscopy (SEM), X-ray diffraction patterns (XRD), and Fourier transform infrared spectroscopy (FT-IR). The photoactivity was evaluated by the degradation of methylene blue. The results show that the photocatalysis of the prepared catalyst is higher than that of conventional heat-treated particles. The higher photoactivity is a combined result of favorable microstructure, appropriate hydroxyl groups, and active sites of Ti3+ ions on the surface of TiO2. It is concluded that the ultraviolet irradiation-induced sol-gel method is an effective method to enhance the photocatalysis of TiO2.

     

    Materials

    Preparation and characterization of high photoactive TiO2 catalyst using the UV irradiation-induced sol-gel method

    Author Affilications

      • School of Materials Science and Engineering, Beijing University of Aeronautics & Astronautics, Beijing 100083, China

    • Received: 18 October 2005;
    High photoactive TiO2 catalyst was prepared using the sol-gel method through UV irradiation during the formation stage of nuclei. The surface morphology and microstructure of the prepared catalyst were characterized using scanning electron microscopy (SEM), X-ray diffraction patterns (XRD), and Fourier transform infrared spectroscopy (FT-IR). The photoactivity was evaluated by the degradation of methylene blue. The results show that the photocatalysis of the prepared catalyst is higher than that of conventional heat-treated particles. The higher photoactivity is a combined result of favorable microstructure, appropriate hydroxyl groups, and active sites of Ti3+ ions on the surface of TiO2. It is concluded that the ultraviolet irradiation-induced sol-gel method is an effective method to enhance the photocatalysis of TiO2.

     

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