Strain Adjustment Realizes the Photocatalytic Overall Water Splitting on Tetragonal Zircon BiVO₄.

ABSTRACT: Overall water splitting to generate H₂ and O₂ is vital in solving energy problem. It is still a great challenge to seek efficient visible light photocatalyst to realize overall water splitting. In this work, the tetragonal zircon BiVO₄ is prepared by epitaxial growth on FTO substrate and its overall water splitting reaction is studied. Under the influence of epitaxial strain, the conduction band position shifts negatively and beyond H⁺ /H₂ reduction potential (0 V vs NHE), which enables it to possess the photocatalytic hydrogen evolution activity. After loading cocatalysts, the overall water splitting (λ > 400 nm) is realized (H₂ : ≈65.7 µmol g^-1 h^-1 , O₂ : ≈32.6 µmol g^-1 h^-1<

SUBMITTER: Dai D 

PROVIDER: S-EPMC9131610 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature