title: A Simple Method for the Preparation of TiO2 /Ag-AgCl@Polypyrrole Composite and Its Enhanced Visible-Light Photocatalytic Activity.
abstract: A novel and facile method was developed to prepare a visible-light driven TiO2 /Ag-AgCl@polypyrrole (PPy) photocatalyst with Ag-AgCl nanoparticles supported on TiO2 nanofibers and covered by a thin PPy shell. During the synthesis, the PPy shell and Ag-AgCl nanoparticles were prepared simultaneously onto TiO2 nanofibers, which simplified the preparation procedure. In addition, because Ag-AgCl aggregates were fabricated via partly etching the Ag nanoparticles, their size was well controlled at the nanoscale, which was beneficial for improvement of the contact surface area. Compared with reference photocatalysts, the TiO2 /Ag-AgCl@PPy composite exhibited an enhanced photodegradation activity towards rhodamine B under visible-light irradiation. The superior photocatalytic property originated from synergistic effects between TiO2 nanofibers, Ag-AgCl nanoparticles and the PPy shell. Furthermore, the TiO2 /Ag-AgCl@PPy composite could be easily separated and recycled without obvious reduction in activity.
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China.|The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, 150080, China.
authors.forename: Tongjie
authors.initials: T
authors.lastname: Yao
authors.affiliation: The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, 150080, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Shi
authors.affiliation: The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, 150080, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Wang
authors.affiliation: The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, 150080, China.
authors.forename: Fangxiao
authors.initials: F
authors.lastname: Wang
authors.affiliation: Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Wu
authors.affiliation: The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, 150080, China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China. sunjm@hit.edu.cn.|The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, 150080, China. sunjm@hit.edu.cn.
authors.forename: Jianmin
authors.initials: J
authors.lastname: Sun
authors.affiliation: The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin, 150080, China. cuit@hit.edu.cn.
authors.forename: Tieyu
authors.initials: T
authors.lastname: Cui
keywords: conducting polymers; nanomaterials; photocatalysis; polypyrrole; silver