H2-production and electron-transfer mechanism of a noble-metal-free WO3@ZnIn2S4 S-scheme heterojunction photocatalyst

A novel noble-metal-free WO 3 @ZnIn 2 S 4 heterojunction showed outstanding photocatalytic H 2 -production activity resulting from S-scheme electron/hole separation and a lower H 2 -evolution barrier as evidenced by DFT calculation, in situ XPS and TRPL.