title: NO treated TiO2 as an efficient visible light photocatalyst for NO removal.
abstract: In this study, we report that nitrogen doped TiO(2) could be achieved via thermal treatment of Degussa P25 TiO(2) in NO atmosphere directly (P25-NO). The samples were characterized with XRD, XPS, and FT-IR. The characterization results suggested that nitrogen species were interstitially doped in P25-NO during the NO thermal treatment process. In comparison with P25, the P25-NO exhibited significantly enhanced photocatalytic activities under visible light irradiation (λ>420 nm) for gaseous NO removal. On the basis of electronic band structure theory, we proposed a possible mechanism for the enhanced visible light driven photocatalytic oxidation process over the interstitial N doping P25-NO samples. This work could not only deepen understanding of the enhanced photoactivity originated from interstitial N doping in TiO(2), but also provide a facile route to prepare nitrogen doped TiO(2) for environmental and energy applications.
authors.affiliation: Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China. jennifer.ai@mail.ccnu.edu.cn
authors.forename: Zhihui
authors.initials: Z
authors.lastname: Ai
authors.forename: Linli
authors.initials: L
authors.lastname: Zhu
authors.forename: Shuncheng
authors.initials: S
authors.lastname: Lee
authors.forename: Lizhi
authors.initials: L
authors.lastname: Zhang
mesh_terms: D002384:Catalysis; D008027:Light; D009569:Nitric Oxide / Q000737:chemistry* / Q000302:isolation & purification*; D010084:Oxidation-Reduction; D013056:Spectrophotometry, Ultraviolet; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: C009495:titanium dioxide; D009569:Nitric Oxide; D014025:Titanium