Efficient photoelectrochemical water oxidation using a TiO₂ nanosphere-decorated BiVO₄ heterojunction photoanode.

ABSTRACT: Constructing heterojunctions by coupling dissimilar semiconductors is a promising approach to boost charge separation and charge transfer in photoelectrochemical (PEC) water splitting. In this work, we fabricated a highly efficient TiO₂/BiVO₄ heterojunction photoanode for PEC water oxidation via a simple hydrothermal method. The resulting heterojunction photoanodes show enhanced PEC performance compared to the bare BiVO₄ due to the simultaneous improvements in charge separation and charge transfer. Under simulated sunlight illumination (AM 1.5G, 100 mW cm^-2), a high photocurrent of 3.3 mA cm^-2 was obtained at 1.23 V (vs. the reversible hydrogen electrode (RHE)) in a neutral solution, which exceeds those attained by the pr

SUBMITTER: Jiang W 

PROVIDER: S-EPMC9091981 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature