title: Anatase TiO2sheet-assisted synthesis of Ti3+self-doped mixed phase TiO2sheet with superior visible-light photocatalytic performance: Roles of anatase TiO2sheet.
abstract: On the basis of measurements, such as field emission scanning electron microscope, UV-Vis diffuse reflectance spectra, X-ray diffraction, electron paramagnetic resonance, photoluminescence spectra, and photocurrent measurements, the roles of anatase TiO2sheet on synthesizing Ti3+self-doped mixed phase TiO2nanosheets (doped TiO2(A/R, TiO2(A))) and on improving the performance for photocatalytic CO2reduction were explored systematically. High surface area anatase TiO2nanosheets (TiO2(A)) as a substrate, structure directing agent, and inhibitor, mediated the synthesis of Ti3+self-doped mixed phase TiO2nanosheets. Addition of TiO2(A) significantly improved not only visible light absorption of doped TiO2(A/R, TiO2(A)), but also the efficiency of photo-excited charges separations due to the existence of interfacial regions of anatase-rutile TiO2junctions. Finally, a possible mechanism for interfacial charge transfer at the anatase-rutile TiO2interface and for photocatalytic CO2reduction over Pt loaded doped TiO2(A/R, TiO2(A)) were proposed.
authors.affiliation: Department of Metallurgical and Chemical Engineering, Jiyuan Vocational and Technical College, Jiyuan 459000, PR China.
authors.forename: Xiaojie
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Metallurgical and Chemical Engineering, Jiyuan Vocational and Technical College, Jiyuan 459000, PR China.
authors.forename: Guoqing
authors.initials: G
authors.lastname: Zuo
authors.affiliation: Department of Metallurgical and Chemical Engineering, Jiyuan Vocational and Technical College, Jiyuan 459000, PR China.
authors.forename: Xin
authors.initials: X
authors.lastname: Lu
authors.affiliation: Department of Metallurgical and Chemical Engineering, Jiyuan Vocational and Technical College, Jiyuan 459000, PR China. Electronic address: jytcq@126.com.
authors.forename: Changqing
authors.initials: C
authors.lastname: Tang
authors.affiliation: Clariant Corporation, Louisville, KY 40209, United States.
authors.forename: Shuo
authors.initials: S
authors.lastname: Cao
authors.affiliation: Department of Chemical Engineering and Catalysis for Renewable Fuels (CReF) Center, University of South Carolina, Columbia, SC 29208, United States. Electronic address: yumiao@cec.sc.edu.
authors.forename: Miao
authors.initials: M
authors.lastname: Yu
keywords: Photocatalytic CO(2) reduction; Ti(3+) self-doped TiO(2); Visible light