Manipulation of charge carrier flow in Bi₄NbO₈Cl nanoplate photocatalyst with metal loading.

ABSTRACT: Separation of photoexcited charge carriers in semiconductors is important for efficient solar energy conversion and yet the control strategies and underlying mechanisms are not fully established. Although layered compounds have been widely studied as photocatalysts, spatial separation between oxidation and reduction reaction sites is a challenging issue due to the parallel flow of photoexcited carriers along the layers. Here we demonstrate orthogonal carrier flow in layered Bi₄NbO₈Cl by depositing a Rh cocatalyst at the edges of nanoplates, resulting in spatial charge separation and significant enhancement of the photocatalytic activity. Combined experimental and theoretical studies revealed that lighter photogenerated electrons, due to a greater in-plane dispersion o

SUBMITTER: Ogawa K 

PROVIDER: S-EPMC8926197 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature