Ag@g-C3N4/MoS2 heterostructure for efficient photocatalytic oxygen evolution under visible light irradiation

Herein, an Ag@g-C3N4/MoS2 heterostructure is successfully synthesized for efficient solar-to-water oxidation. UV-vis DRS and steady-state PL analyses reveal the narrow band gap (2.10 eV) and efficient charge separation properties of the Ag nanoparticles and MoS2, respectively. The benefits include an excellent ∼3.2-fold increase in O2 production rate (2727 μmol g-1 h-1) compared to Ag@g-C3N4. A plausible Z-scheme mechanism is also proposed.