Synthesis of Visible Light Response Type Titania Powders by Hydrothermal Reactions

Abstract

Visible light response type titania crystals were prepared from titanium trichloride precursor and ammonia releasing regents such as urea and hexamethylenetetaamine by the homogeneous precipitation - hydrothermal reaction process. Titania powders prepared from these processes possessed large specific surface area and superior visible light absorption and photocatalytic activity for the destruction of NO than those of commercial titanium dioxide P-25.