Preparation of the Ti<sup>3+</sup>/TiO<sub>2</sub> supported CuO catalyst and its photocatalytic performance in the degradation of toluene

ZHOU Wen-jun; SHEN Bo-xiong; ZHANG Qin; WANG Xin-yi; LU Feng-ju

Volume 47 Issue 2

Feb. 2019

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Article Navigation > Journal of Fuel Chemistry and Technology > 2019 > 47(2): 249-256

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.

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.

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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

Funds:

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

Tangshan Science and Technology Project 18130211A

More Information

Corresponding author: SHEN Bo-xiong, E-mail: shenboxiong0722@sina.com
Received Date: 2018-09-13
Rev Recd Date: 2018-10-30

Available Online: 2021-01-23

Publish Date: 2019-02-10

Abstract

Abstract

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.
- Ti³⁺/TiO₂,
- CuO,
- toluene removal,
- Cu-BTC,
- photocatalysis

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References(24)

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