Efficient and stable visible-light-driven Z-scheme overall water splitting using an oxysulfide H₂ evolution photocatalyst.

ABSTRACT: So-called Z-scheme systems permit overall water splitting using narrow-bandgap photocatalysts. To boost the performance of such systems, it is necessary to enhance the intrinsic activities of the hydrogen evolution photocatalyst and oxygen evolution photocatalyst, promote electron transfer from the oxygen evolution photocatalyst to the hydrogen evolution photocatalyst, and suppress back reactions. The present work develop a high-performance oxysulfide photocatalyst, Sm₂Ti₂O₅S₂, as an hydrogen evolution photocatalyst for use in a Z-scheme overall water splitting system in combination with BiVO₄ as the oxygen evolution photocatalyst and reduced graphene oxide as the solid-state electron mediator. After surface modifications of the photoc

SUBMITTER: Lin L 

PROVIDER: S-EPMC10776739 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature