Chinese Journal of Applied Chemistry ›› 2023, Vol. 40 ›› Issue (11): 1518-1530.DOI: 10.19894/j.issn.1000-0518.230158

• Review • Previous Articles     Next Articles

Fabrication of BiOX-Based Photocatalysts and Their Applications in Energy Conversion

Feng WEI1,2, Hai-Dong XING1, Zi-Yuan XIU1, De-Feng XING2, Xiao-Jun HAN1()   

  1. 1.State Key Laboratory of Urban Water Resource and Environment,School of Chemistry and Chemical Engineering,Harbin Institute of Technology,Harbin 150001,China
    2.State Key Laboratory of Urban Water Resource and Environment,School of Environment,Harbin Institute of Technology,Harbin 150001,China
  • Received:2023-05-30 Accepted:2023-10-16 Published:2023-11-01 Online:2023-12-01
  • Contact: Xiao-Jun HAN
  • About author:hanxiaojun@hit.edu.cn
  • Supported by:
    the National Natural Science Foundation of Heilongjiang Province(ZD2022B001);the China Postdoctoral Science Foundation(2021M701000);Heilongjiang Postdoctoral Foundation(LBH-Z21146);the Open Project of State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology(ES202213)

Abstract:

With the rapid development of our society, the excessive consumption of traditional petrochemical resource not only results in energy crisis, but also causes environmental pollution. In recent years, researchers are devoting themselves to the development of novel, clean and carbon-neutral energy with high efficiency. The energy conversion and storage from low-density solar energy to high-density chemical energy by photocatalysis technology show great potential to solve the aforementioned energy shortage and environmental pollution issues. Among all the photocatalysts, BiOX with typical layer structures, proper bandgap positions and excellent light response is considered as a promising photocatalyst. However, the photocatalytic performance based on BiOX is still far from satisfaction. Therefore, the development of its modification strategies is becoming a research hotspot. In this review, with BiOX as the research objective, the modification strategies based on its structural characteristics to promote the photocatalytic properties are summarized, including intrinsic modification (morphology regulation, element doping, and defect introduction) and heterojunction construction. The research progress of BiOX-based photocatalysts in energy conversion field (photocatalytic water splitting for H2 production, photocatalytic CO2 reduction and NH3 photosynthesis) is presented. The modification of BiOX can alter the migration direction of photocarriers and promote their separation. Meanwhile, the produced active sites during the modification are provided as the precondition to enhance the photocatalytic performance. Finally, the research challenge and development trends of BiOX-based photocatalysts are proposed.

Key words: BiOX, Photocatalysis, Layer structure, Intrinsic modification, Heterojunction construction, Energy conversion

CLC Number: