Nitrogen-doped anatase, rutile and brookite titania photocatalyst TiO2-xNy which can be excited by visible light were prepared by mixing aqueous TiCl3 solutions with urea ((NH2)2CO) and various type of alcohols followed by solvothermal treatment at 190 °C. The phase composition, crystallinity, microstructure and specific surface area of titania powders greatly changed depending on the pH and type of solvents. Violet, yellowish and grayish TiO2-xNy with excellent visible light absorption and photocatalytic activity were prepared. The TiO2-xNy powders prepared in urea-methanol solution showed excellent photocatalytic ability for the oxidative destruction of nitrogen monoxide under irradiation of visible light λ > 510 nm.
|Number of pages||8|
|Journal||Journal of the European Ceramic Society|
|Publication status||Published - 2006|
- Chemical properties
- Powders-chemical preparation