Citation: Kezhen Qi, Beicheng, Jiaguo Yu, Wingkei Ho. A review on TiO₂-based Z-scheme photocatalysts[J]. Chinese Journal of Catalysis, ;2017, 38(12): 1936-1955. doi: 10.1016/S1872-2067(17)62962-0 shu

A review on TiO₂-based Z-scheme photocatalysts

Kezhen Qi ^a,b, ,
Beicheng ^a ,
Jiaguo Yu ^a,d ,
Wingkei Ho ^c

a State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, China;
b Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, Liaoning, China;
c Department of Science and Environmental Studies, the Education University of Hong Kong, Tai Po, N. T. Hong Kong, China;
d Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia

Received Date: 18 October 2017
Revised Date: 31 October 2017

Fund Project: This work was supported by the National Natural Science Foundation of China (51602207, 21433007, 51320105001, 21573170), the Self-determined and Innovative Research Funds of SKLWUT (2017-ZD-4, 2016-KF-17), and the Natural Science Foundation of Hubei Province of China (2015CFA001).

TiO₂-based Z-scheme photocatalysts have attracted considerable attention because of the low recombination rate of their photogenerated electron-hole pairs and their high photocatalytic efficiency. In this review, the reaction mechanism of Z-scheme photocatalysts, recent research progress in the application of TiO₂-based Z-scheme photocatalysts, and improved methods for photocatalytic performance enhancement are explored. Their applications, including water splitting, CO₂ reduction, decomposition of volatile organic compounds, and degradation of organic pollutants, are also described. The main factors affecting the photocatalytic performance of TiO₂-based Z-scheme photocatalysts, such as pH, conductive medium, cocatalyst, architecture, and mass ratio, are discussed. Concluding remarks are presented, and some suggestions for the future development of TiO₂-based Z-scheme photocatalysts are highlighted.
- TiO₂,
- Z-scheme photocatalyst,
- Water splitting,
- CO₂ reduction,
- Pollutant degradation
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A review on TiO₂-based Z-scheme photocatalysts