Effect of Pt concentration on the production of hydrogen by a TiO2TiO2 photocatalyst

In order to increase the effectiveness of water splitting by TiO2TiO2 photocatalysts, the effects of the Pt deposition method and the Pt concentration on the hydrogen production rate of Pt-deposited TiO2TiO2 were studied. Among the methods used in this study, the formaldehyde method resulted in the highest rate of H2H2 production. The amount of Pt on TiO2TiO2 had to be optimized to obtain the highest rate of H2H2 production. The Pt particles on the Pt-deposited TiO2TiO2 prepared by the present method were too small or too thin to be observed by transmission electron microscopy.