过程工程学报
過程工程學報
과정공정학보
The Chinese Journal of Process Engineering
2006年
3期
472-476
,共5页
Tsugio Sato%Yohei Aida%Masakazu Komatsu%殷澍
Tsugio Sato%Yohei Aida%Masakazu Komatsu%慇澍
Tsugio Sato%Yohei Aida%Masakazu Komatsu%은주
nitrogen-doped titania%solvothermal synthesis%alcohol%photocatalysis%nitrogen monoxide%decomposition
Nitrogen-doped titania nanoparticles were obtained by the homogeneous precipitation in hexamethylenetetraminetitanium trichloride-alcohol aqueous solutions at 90 ℃ followed by heating at 190 ℃. Anatase, rutile and brookite were obtained, where the crystallite size, specific surface area and color greatly changed as 5～50 nm, 20～200 m2/g and light gray to yellow, depending on the solvent and pH. The products after calcination were yellow, indicating doping with nitrogen ion. All colored titania showed photocatalytic activity under visible light irradiation for the oxidative decomposition of nitrogen monoxide in air. Especially, the nanoparticles of anatase type nitrogen-doped titania obtained using methanol aqueous solution showed excellent photocatalytic activity.
