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Citation: ZHOU Wen-jun, SHEN Bo-xiong, ZHANG Qin, WANG Xin-yi, LU Feng-ju. Preparation of the Ti3+/TiO2 supported CuO catalyst and its photocatalytic performance in the degradation of toluene[J]. Journal of Fuel Chemistry and Technology, ;2019, 47(2): 249-256. shu

Preparation of the Ti3+/TiO2 supported CuO catalyst and its photocatalytic performance in the degradation of toluene

  • School of Energy & Environmental Engineering, Hebei University of Technology, Tianjin 300401, China

  • Corresponding author: SHEN Bo-xiong, shenboxiong0722@sina.com
  • Received Date: 13 September 2018
    Revised Date: 30 October 2018

    Fund Project: Tangshan Science and Technology Project 18130211Athe National Important Research and Development Plan 2018YFB0605101The project was supported by the National Important Research and Development Plan (2018YFB0605101), Key Project Natural Science Foundation of Tianjin (18JCZDJC39800), the Project of Science and Technology of Tianjin (18ZXSZSF00040), Tianjin Science Popularization Project(18KPXMSF00080) and Tangshan Science and Technology Project(18130211A)Tianjin Science Popularization Project 18KPXMSF00080the Project of Science and Technology of Tianjin 18ZXSZSF00040Key Project Natural Science Foundation of Tianjin 18JCZDJC39800

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  • The CuO-Ti3+/TiO2(Cu-TiMB) pholocatalyst was prepared by reducing TiO2 loaded with Cu-BTC (BTC, 1, 3, 5-benzoic acid) precursor; its photocatalytic performance in the removal of gaseous toluene was investigated. The result indicated that the toluene removal efficiency of CuO-Ti3+/TiO2(Cu-TiMB) by visible irradiation was 2.68 time higher than that of CuO-TiO2(Cu-TiD) prepared by impregnation. The CuO-Ti3+/TiO2(Cu-TiMB) catalyst shows relatively high surface area (147 m2/g), small particle size (0.45 μm), porous structure and high CuO dispersion; Ti3+ may provide a large number of oxygen vacancies, which can significantly enhance the photocatalytic response at 400-800 nm. In addition, Cu2+ and Cu+ may form heterogeneous structure with Ti3+, which can further increase the number of oxygen vacancies and delay the electron-hole pairs (e--h+) recombination time. The oxygen vacancies are effective in enhancing the ability for capturing adsorption oxygen, promoting the chemisorption ability by changing the valence state of metal oxides, and then improving the photocatalytic performance.
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