Solar light-driven photocatalytic hydrogen evolution over ZnIn2S4 loaded with transition-metal sulfides

Table 1 Average rates of H₂ evolution over Pt-loaded MS/ZnIn₂S₄.

Photocatalyst MS/ZnIn₂S₄	Content of MS	Rate of hydrogen evolution μmol/h
ZnIn₂S₄	0	126.7
SnS/ZnIn₂S₄	0.5%	115.4
SnS/ZnIn₂S₄	1.0%	129.7
SnS/ZnIn₂S₄	2.0%	127.1
CuS/ZnIn₂S₄	0.5%	181.4
CuS/ZnIn₂S₄	1.0%	201.7
CuS/ZnIn₂S₄	2.0%	139.4

The average rates of H₂ evolution over Pt-loaded MS/ZnIn₂S₄ (MS = metal sulfide: SnS and CuS) under solar light irradiation in the initial 20-h period