Interfacial chemical bond and internal electric field modulated Z-scheme S_v-ZnIn₂S₄/MoSe₂ photocatalyst for efficient hydrogen evolution.

ABSTRACT: Construction of Z-scheme heterostructure is of great significance for realizing efficient photocatalytic water splitting. However, the conscious modulation of Z-scheme charge transfer is still a great challenge. Herein, interfacial Mo-S bond and internal electric field modulated Z-scheme heterostructure composed by sulfur vacancies-rich ZnIn₂S₄ and MoSe₂ was rationally fabricated for efficient photocatalytic hydrogen evolution. Systematic investigations reveal that Mo-S bond and internal electric field induce the Z-scheme charge transfer mechanism as confirmed by the surface photovoltage spectra, DMPO spin-trapping electron paramagnetic resonance spectra and density functional theory calculations. Under the intense synergy among the Mo-S bond, internal elec

SUBMITTER: Wang X 

PROVIDER: S-EPMC8257585 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature