title: An in-situ synthesis of Ag/AgCl/TiO2/hierarchical porous magnesian material and its photocatalytic performance.
abstract: The absorption ability and photocatalytic activity of photocatalytic materials play important roles in improving the pollutants removal effects. Herein, we reported a new kind of photocatalytic material, which was synthesized by simultaneously designing hierarchical porous magnesian (PM) substrate and TiO2 catalyst modification. Particularly, PM substrate could be facilely prepared by controlling its crystal phase (Phase 5, Mg3Cl(OH)5 · 4H2O), while Ag/AgCl particles modification of TiO2 could be achieved by in situ ion exchange between Ag(+) and above crystal Phase. Physiochemical analysis shows that Ag/AgCl/TiO2/PM material has higher visible and ultraviolet light absorption response, and excellent gas absorption performance compared to other controls. These suggested that Ag/AgCl/TiO2/PM material could produce more efficient photocatalytic effects. Its photocatalytic reaction rate was 5.21 and 30.57 times higher than that of TiO2/PM and TiO2/imporous magnesian substrate, respectively. Thus, this material and its intergration synthesis method could provide a novel strategy for high-efficiency application and modification of TiO2 photocatalyst in engineering filed.
authors.affiliation: State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China.|School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China.
authors.forename: Lu
authors.initials: L
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China.
authors.forename: Fazhou
authors.initials: F
authors.lastname: Wang
authors.affiliation: School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China.
authors.forename: Chang
authors.initials: C
authors.lastname: Shu
authors.affiliation: School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, PR China.
authors.forename: Peng
authors.initials: P
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China.
authors.forename: Wenqin
authors.initials: W
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China.
authors.forename: Shuguang
authors.initials: S
authors.lastname: Hu