Integration of a Cu₂O/ZnO heterojunction and Ag@SiO₂ into a photoanode for enhanced solar water oxidation.

ABSTRACT: Photoelectrochemical water splitting (PEC-WS) has attracted considerable attention owing to its low energy consumption and sustainable nature. Constructing semiconductor heterojunctions with controllable band structure can effectively facilitate photogenerated carrier separation. In this study, a FTO/ZnO/Cu₂O/Ag@SiO₂ photoanode with a Cu₂O/ZnO p-n heterojunction and Ag@SiO₂ nanoparticles is constructed to investigate its PEC-WS performance. Compared with a bare ZnO photoanode, the photocurrent density of the FTO/ZnO/Cu₂O/Ag@SiO₂ photoanode (0.77 mA cm^-2) at 1.23 V_RHE exhibits an increment of 88%, and a cathodic shift of 0.1 V for the on-set potential (0.4 V_RHE). Detailed photoelectrochemical

SUBMITTER: Zeng X 

PROVIDER: S-EPMC10836412 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature