Preparation of High Activity Ga and Cu Doped ZnS by Hydrothermal Method for Hydrogen Production under Visible Light Irradiation

Table 2

Chemical composition of ZnS doped samples by XRF.

Entry	Samples	Zn	Cu	Ga	S
1	Cu(0.1)-ZnS	52.57	6.96	—	32.33
2	Ga(0.1)-ZnS	49.7	—	4.46	28.2
3	Ga(0.1),Cu(0.01)-ZnS	36.49	0.69	3.37	20.27
4	Ga(0.1),Cu(0.03)-ZnS	48.82	2.05	4.47	25.09
5	Ga(0.1),Cu(0.05)-ZnS	38.25	3.33	2.95	22.85