Boosting Photoelectrochemical Catalytic Ability of Bismuth Vanadate toward Water Oxidation via Synergistic Surface Defect Engineering and MXene-Assisted Charge Transport.

ABSTRACT: Bismuth vanadate (BiVO₄) is regarded as a promising photoanode material for solar-driven photoelectrochemical (PEC) water oxidation, due to its visible-light absorption and favorable band edge positions. However, the practical application is hindered by limited charge carrier mobility and significant surface recombination. In this study, a dual-modification strategy is applied by combining alkaline etching and MXene integration to enhance surface reactivity and charge transport properties of BiVO₄. Alkaline etching introduces structural defects and active sites on BiVO₄ surface, which promote hole accumulation and facilitate interfacial redox reactions. Meanwhile, incorporating MXene forms a conductive interface that accelerates hole extraction and suppress

SUBMITTER: Cheng TM 

PROVIDER: S-EPMC12423830 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature