Preparation of Visible-Light-Responsive Nitrogen-carbon Co-doped Titania by Chemical Vapor Deposition

Nitrogen-doped mania (N-doped TiO(2)) and nitrogen-carbon co-doped titania (N-C-doped TiO(2)) were prepared in metal-organic chemical vapor deposition (MOCVD) processes under the controlled reaction atmosphere The N-doped TiO(2) and N-C-doped TiO(2) with anatase phase were prepared at 600 degrees C under N(2)-O(2)-NH(3) and N(2)-NH(3) atmospheres respectively The N-C-doped TiO(2) exhibited the high photocatalytic activity for the oxidation of NO under visible-light illuminations The chamber atmosphere in the MOCVD process plays an important role on the surface lattice structure and nitrogen and carbon content of TiO(2) The nitrogen and carbonaceous species on the TiO(2) surface evidenced from X-ray diffractometry (XRD). UV-VIS, and Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS), were inferred as important factors for narrowing band gap of mama and enhancement of its is activity