We present a new visible-light driven photocatalyst (AgIn)(x)Cd2(1-x)S2 prepared by low-temperature hydrothermal method. Here, (AgIn)(x)Cd2(1-x)S2 with nanostructure shows photocatalytic activities for H-2 evolution from aqueous solutions containing sacrificial reagents, SO32-, and S2- under visible-light irradiation even without any cocatalysts. The morphology and band gap of the photocatalysts are different with x changing from 0.01 to 0.5, and the band gap of (AgIn)(x)Cd2(1-x)S2 can be easily tuned from 2.32-2.08 eV. Importantly, the addition of Ag+ and In3+ ion to CdS can improve the light...
