Hydrogen evolution activity of CZS-based photocatalysts.

Photocatalyst	Light source	Solution	Activity (mmol h−1 g−1)	Ref.
Co0.85Se (1.5 wt%)/Cd0.5Zn0.5S	300 W Xe lamp (λ ≥ 420 nm)	0.2 M Na2S and 0.2 M Na2SO3	30.37	54
20%-NiTiO3/Cd0.5Zn0.5S	300 W Xe lamp (λ ≥ 420 nm)	0.55 M Na2S and 0.15 M Na2SO3	26.45	55
Cd0.5Zn0.5S/HNTs-3 wt%	300 W Xe lamp (λ > 400 nm)	0.1 M Na2S and 0.1 M Na2SO3	25.67	56
13 wt% Fe2P/Cd0.5Zn0.5S	300 W Xe lamp	20 vol% lactic acid	24.84	57