Charge Relays via Dual Carbon‐Actions on Nanostructured BiVO 4 for High Performance Photoelectrochemical Water Splitting

Abstract Photoelectrochemical water splitting based on nanostructured bismuth vanadate (BiVO 4 ) can be a promising strategy to produce low‐cost and green H 2 to replace fossil fuels and realize carbon neutrality. Herein, a simple chemical way to realize in situ carbon doping into BiVO 4 crystalline structure is designed and obtained carbon‐doped BiVO 4 , namely C‐BiVO 4 , can improve the electronic conductivity of BiVO 4 . In addition, the introduction of the synthesized carbon quantum dots (CQDs) as a co‐catalyst, immobilizes CQDs onto the C‐BiVO 4 nanosheet and acquires the optimized C‐BiVO 4 /CQDs heterogeneous structure, which not only boosts light absorption, but also enhances the separation and transfer…

• NS
  Natural Science Foundation of Guangdong Province

  Awards: 2020A1515010798, 21706295