Surface Modifications of Layered Perovskite Oxysulfide Photocatalyst Y₂Ti₂O₅S₂ to Enhance Visible-Light-Driven Water Splitting.

ABSTRACT: Increasing the efficiency of visible-light-driven water splitting systems will require improvements in the charge separation characteristics and redox reaction kinetics associated with narrow-bandgap photocatalysts. Although the traditional approach of loading a single cocatalyst on selective facets provides reaction sites and reduces the reaction overpotential, pronounced surface charge carrier recombination still results in limited efficiency increases. The present study demonstrates a significant improvement in the hydrogen evolution activity of the layered single-crystal photocatalyst Y₂Ti₂O₅S₂. Increased performance is obtained through sequential loading of Pt cocatalysts using a two-step process followed by photodeposition of Cr₂

SUBMITTER: Liang X 

PROVIDER: S-EPMC11744574 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature