Preparation of visible light-activated titania photocatalyst by mechanochemical method

摘要

Nitrogen-doped yellowish rutile titania prepared by high energy ball milling of P-25 titania -5% HMT (Hexamethylenetetramine, C_6H_(12)N_4) mixed powders followed by calcination in air at 400 deg C possessed two absorption edges around 400 and 540 nm and showed excellent photocatalytic ability for nitrogen monoxide oxidization under irradiation of the visible light of wavelength > 510 nm.