Synthesis and Photocatalytic Properties of High-Surface-Area Mesoporous TiO_2 Nanoparticle Assemblies

摘要

Mesoporous TiO_2 nanoparticle assemblies have been synthesized via a surfactant-assisted aggregating process. The products feature a three-dimensional network of interconnected anatase-TiO_2 NPs with large internal BET surface area (ca. 142-152 m~2g~(-1)) and uniform pores (ca. 7-8 nm). Preliminary catalytic experiments indicated that these mesophases exhibit excellent catalytic activity in UV-visible light oxidation of 1-phenylethanol with molecular oxygen.