title: Facile synthesis of the Ti3+ self-doped TiO2-graphene nanosheet composites with enhanced photocatalysis.
abstract: This study developed a facile approach for preparing Ti(3+) self-doped TiO2-graphene photocatalyst by a one-step vacuum activation technology involved a relative lower temperature, which could be activated by the visible light owing to the synergistic effect among Ti(3+) doping, some new intersurface bonds generation and graphene oxide reduction. Compared with the traditional methods, the vacuum activation involves a low temperature and low-costing, which can achieve the reduction of GO, the self doping of Ti(3+) in TiO2 and the loading of TiO2 nanoparticles on GR surface at the same time. These resulting TiO2-graphene composites show the high photodegradation rate of MO, high hydrogen evolution activity and excellent IPCE in the visible light irradiation. The facile vacuum activation method can provide an effective and practical approach to improve the performance of TiO2-graphene and other metal oxides-graphene towards their practical photocatalytic applications.
authors.affiliation: Key Lab for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai. 200237, China.
authors.forename: Bocheng
authors.initials: B
authors.lastname: Qiu
authors.affiliation: Key Lab for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai. 200237, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Key Lab for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai. 200237, China.
authors.forename: Yunfei
authors.initials: Y
authors.lastname: Ma
authors.affiliation: Key Lab for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai. 200237, China.
authors.forename: Xiaolong
authors.initials: X
authors.lastname: Yang
authors.affiliation: Key Lab for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai. 200237, China.
authors.forename: Weiqin
authors.initials: W
authors.lastname: Sheng
authors.affiliation: Key Lab for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai. 200237, China.
authors.forename: Mingyang
authors.initials: M
authors.lastname: Xing
authors.affiliation: Key Lab for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai. 200237, China.
authors.forename: Jinlong
authors.initials: J
authors.lastname: Zhang