Synthesis and Visible Light Induced Photocatalytic Properties of Titania by Homogeneous Precipitation-Hydrotermal Process

Abstract

Visible light induced titania nanocrystals were prepared by “Homogeneous Precepitation-Hhydrothermal Process” in TiCl₃-Urea solution system. The phase composition, crystallinity, microstructure and specific surface area of titania powders were greatly affected by pH and hydrothermal treatment temperature. Blue or yellow titania powders with excellent visible light absorbency and photocatalytic nitrogen monoxide destruction ability under λ >510nm were prepared.