title: TiO2/vanadate (Sr10V6O25, Ni3V2O8, Zn2V2O7) heterostructured photocatalysts with enhanced photocatalytic activity for photoreduction of CO2 into CH4.
abstract: A series of TiO2/vanadate (Sr10V6O25, Ni3V2O8, Zn2V2O7) heterostructured photocatalysts were prepared by a simple sol-gel method. The theoretical calculations imply the possible energy band match between TiO2 and vanadates. Characterized by XRD, Raman, TEM, EDX, XPS, absorption spectra, PL and time-resolved PL decay curves, it is revealed that the vanadates, which exist on the surface of TiO2, could suppress the recombination of charge carriers, prolong the life-time of photogenerated electrons and provide surface reactive hole sites, improving the photocatalytic activity for photo-reduction of CO2 into CH4.
authors.affiliation: Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China. caoya@nankai.edu.cn.
authors.forename: Yabin
authors.initials: Y
authors.lastname: Yan
authors.affiliation: College of Materials Science & Engineer, Liaoning Technology University, Fuxin 123000, China.
authors.forename: Yanlong
authors.initials: Y
authors.lastname: Yu
authors.affiliation: Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China. caoya@nankai.edu.cn.
authors.forename: Di
authors.initials: D
authors.lastname: Wu
authors.affiliation: Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China. caoya@nankai.edu.cn.
authors.forename: Yajun
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Key Laboratory of Weak-Light Nonlinear Photonics, Ministry of Education, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China. caoya@nankai.edu.cn.
authors.forename: Yaan
authors.initials: Y
authors.lastname: Cao