A Multifold Increase in the Photocatalytic Activity of Titanium Dioxide via the Combination of a Mesoporous Structure with Platinum Nanoparticles

摘要

Owing to its wide application, e.g., in photocatalysis [1, 2], nanosized mesoporous titanium dioxide has attracted considerable attention of researchers. Mesoporous titanium dioxide with a high specific surface area shows higher activity than usual TiO2 [3]. A promising procedure for the preparation of mesoporous titanium dioxide is the supramolecular template technique [4]. Template mesoporous titanium dioxide was synthesized for the first time by the sol–gel method with the use of phosphate surfactants as a template [5, 6]. Later,block copolymers and substances that do not exhibit the surface activity were used as surfactants [7, 8].