title: Synthesis of TiO2-N/SnO2heterostructure photocatalyst and its photocatalytic mechanism.
abstract: A series of TiO2-N/SnO2X heterostructure photocatalysts were synthesized by a hydrolysis-deposition method. The structure, existing states of N and SnO2heterostructure at the interface of TiO2-N/SnO2X were studied by EADX, XRD, Raman, FT-IR, XPS, and HRTEM. The band structure is investigated by both theoretical calculation and experiment characterization. It was found that the introduction of NOxsurface species and SnO2nanoparticles would enhance the absorption in visible region, increase reactive oxidative species and separate photogenerated electrons and holes efficiently. Therefore, the photocatalytic activity is improved significantly for TiO2-N/SnO2X, compared with TiO2-N and TiO2under visible and UV light irradiation. This work may offer a new strategy to fabricate new photocatalyst with high photocatalytic performance.
authors.affiliation: College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, PR China.
authors.forename: Han
authors.initials: H
authors.lastname: Cao
authors.affiliation: Shenzhen Key Laboratory of Laser Engineering, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China.
authors.forename: Shaolong
authors.initials: S
authors.lastname: Huang
authors.affiliation: The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai University, Tianjin 300457, PR China; Department of Materials Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China.
authors.forename: Yanlong
authors.initials: Y
authors.lastname: Yu
authors.affiliation: The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai University, Tianjin 300457, PR China.
authors.forename: Yabin
authors.initials: Y
authors.lastname: Yan
authors.affiliation: College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, PR China. Electronic address: yuekai_lu@sina.com.
authors.forename: Yuekai
authors.initials: Y
authors.lastname: Lv
authors.affiliation: The Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Institute of Applied Physics and School of Physics, Nankai University, Tianjin 300457, PR China. Electronic address: caoya@nankai.edu.cn.
authors.forename: Yaan
authors.initials: Y
authors.lastname: Cao
keywords: Heterostructure; SnO(2); TiO(2)-N; Visible response