solutions were studied by X-ray diffraction, diffuse reflectance UVevisible spectroscopy and field emission scanning electron microscopy. From the characterizations, it was confirmed that Sn can form solid solution with Cd 0.1 Zn 0.9 S and the high crystallinity can be maintained as well. Among all samples, the highest photocatalytic activity was observed on Cd 0.1 Sn 0.01 Zn 0.88 S photocatalyst, with average rate of hydrogen production 3.52 mmol/h, which was ca. 1.5 times higher than the Cd 0.1 Zn 0.9 S photocatalyst. In addition to the high activity, the Cd 0.1 Sn 0.01 Zn 0.88 S also showed high stability at long irradiation time. The role of Sn in preventing electron-hole recombination and photocorrosion was proposed.

No abstract

UV, visible, and solar light activations gave different optimum loadings of CuO due to the different masking effects of CuO photodeposited on TiO2.

No abstract