Synthesis of CdS Sensitized TiO₂ Photocatalysts: Methylene Blue Adsorption and Enhanced Photocatalytic Activities

Table 2

Elemental compositions and band gaps of the as-synthesized CdS/TiO₂ photocatalysts.

Sample	Elements, wt.%
	Cd : Ti	Ti (K)	O (K)	Cd (L)	S (K)
TiO2	0	20.81	79.19	—	—	3.35
TCd1	0.1 : 1	12.58	43.76	1.57	0.10	3.10
TCd2	0.2 : 1	4.86	26.85	1.51	0.23	3.00
TCd3	0.3 : 1	9.65	35.93	3.51	0.67	2.80
TCd4	0.4 : 1	7.45	32.25	5.85	0.86	2.70