Studies on the Stability of Pt/K2La2Ti3O10 Photocatalytic Hydrogen Evolution
Pt/K2La2Ti3O10 was prepared by impregnating K2La2Ti3O10 into H2PtCl6 solution. The structure of the photocatalyst was studied by means of XRD, UV-Vis spectroscopy and XPS. And the photocatalytic activities of the samples were examined in a Pyrex reaction cell by splitting methanol solution. The result revealed that Pt/K2La2Ti3O10 photocatalyst showed much higher activity than pure K2La2Ti3O10 and kept a high photocatalytic activity even after 120 hours of illumination. XPS showed that the valence state of Pt was reduced from Pt to Pt0 during the illumination.
Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He
W. Q. Cui et al., "Studies on the Stability of Pt/K2La2Ti3O10 Photocatalytic Hydrogen Evolution", Advanced Materials Research, Vols. 233-235, pp. 1646-1649, 2011