Visible Light-Driven Photoelectrocatalytic Water Splitting Using Z-Scheme Ag-Decorated MoS₂/RGO/NiWO₄ Heterostructure.

ABSTRACT: Herein, we have successfully constructed a solid-state Z-scheme photosystem with enhanced light absorption capacity by combining the optoelectrical properties of AgNPs with those of the MoS₂/RGO/NiWO₄ (Ag-MRGON) heterostructure. The Ag-MRGON Z-scheme system demonstrates improved photo-electrochemical (PEC) water-splitting performance in terms of applied bias photon-to-current conversion efficiency (ABPE), which is 0.52%, and 17.3- and 4.3-times better than those of pristine MoS₂ and MoS₂/NiWO₄ photoanodes, respectively. The application of AgNPs as an optical property enhancer and RGO as an electron mediator improved the photocurrent density of Ag-MRGON to 3.5 mA/cm² and suppressed the charge recombination to attain the photo

SUBMITTER: Hendi AH 

PROVIDER: S-EPMC7745211 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature