University Chemistry ›› 2026, Vol. 41 ›› Issue (8): 162-175.doi: 10.12461/PKU.DXHX202507100

• Survey of Chemistry • Previous Articles     Next Articles

Advances in BiVO4-based photoanodes for solar water splitting performance

Rui-Ting Gao, Xiaotian Guo, Lei Wang   

  1. College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, Inner Mongolia Autonomous Region, China
  • Received:2025-07-21 Accepted:2025-09-16 Published:2026-08-25
  • Contact: Lei Wang E-mail:wanglei@imu.edu.cn

Abstract: Photoelectrochemical (PEC) water splitting represents a pivotal technology for solar-to-hydrogen energy conversion. Among semiconductor photoanode materials, BiVO4 has emerged as a highly promising candidate owing to its optimal bandgap (2.4-2.5 eV), exceptional chemical stability, environmental inertness, and facile synthesis. Nevertheless, its PEC efficiency is constrained by sluggish charge carrier transport kinetics and substantial bulk/surface recombination. Recent studies have demonstrated that these limitations can be effectively mitigated through targeted modification strategies, leading to significant enhancements in the photoelectrochemical performance of the BiVO4. This review systematically examines key optimization approaches, including nanostructure engineering, doping (intrinsic/extrinsic), heterojunction construction, surface passivation, and cocatalyst loading, while evaluating their impacts on charge separation and transport dynamics. Finally, we present perspectives on future research directions to advance BiVO4-based PEC systems.

Key words: Photoelectrochemistry, BiVO4-based photoanodes, Water splitting, Charge carrier