Fabrication and photocatalytic property of Pt-intercalated layered perovskite niobates H1−xLaNb2−xMoxO7 (x = 0-0.15)

H1−xLaNb2−xMoxO7 was prepared by solid-state reaction followed by an ion-exchange reaction. Pt was incorporated in the interlayer of H1−xLaNb2−xMoxO7 by the stepwise intercalation reaction. The H1−xLaNb2−xMoxO7 showed hydrogen production activity and the activities were greatly enhanced by Pt co-incorporating. The x value in H1−xLaNb2−xMoxO7 had an important effect on the photocatalytic activity of the catalyst. When the x = 0.05, the H1−xLaNb2−xMoxO7/Pt showed a photocatalytic activity of 80 cm3 h−1 g−1 hydrogen evolution rate in 10 vol.% methanol solution under irradiation from a 100 W mercury lamp at 333 K.