Annealing Effects on Photocatalytic Activity of Zn_0.2Cd_0.8S Films Prepared by Chemical Bath Deposition

Figure 4

Photocatalytic degradations of methyl orange in the presence of Zn_0.2Cd_0.8S alloyed films under visible light irradiation. (a) Annealed at 200°C, 300°C, 400°C, and 500°C, respectively. The inset figure is a typical absorption spectral change. (b) Annealed at 400°C with heating rate of 2°C/min, 5°C/min, and 10°C/min, respectively.

(a)

(b)