title: AgBi(WO4)2 : A New Modification Material to Bi2 WO6 for Enhanced and Stable Visible-Light Photocatalyic Performance.
abstract: In this work, we report a novel AgBi(WO4 )2 -Bi2 WO6 heterostructure, which was designed and synthesized by using a simple hydrothermal method. Methyl orange was used as a representative dye indicator to evaluate the visible-light catalytic activity and the catalytic mechanism was investigated. The as-synthesized AgBi(WO4 )2 -Bi2 WO6 composite displayed a 43 times higher photocatalytic activity than Bi2 WO6 . Owing to the matched band gap and distinctive heterostructure, AgBi(WO4 )2 -Bi2 WO6 reveals a high visible-light response and high-efficiency utilization of both photogenerated electrons and holes. AgBi(WO4 )2 reveals a similar energy level to and good lattice match with Bi2 WO6 , which are favorable qualities for band bending and fluent electron transfer. Furthermore, the photoexcited electrons can produce oxygen to generate (.) O2 (-) radicals, which is vital for the overall utilization of both holes and electrons. This is the first example of AgBi(WO4 )2 being used as photocatalytic material.
authors.affiliation: Key Laboratory of Food Colloids and Biotechnology, (Ministry of Education of China), School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, P.R. China.
authors.forename: Cuiyun
authors.initials: C
authors.lastname: Feng
authors.affiliation: Key Laboratory of Food Colloids and Biotechnology, (Ministry of Education of China), School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, P.R. China. dongym@jiangnan.edu.cn.
authors.forename: Yuming
authors.initials: Y
authors.lastname: Dong
authors.affiliation: Key Laboratory of Food Colloids and Biotechnology, (Ministry of Education of China), School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, P.R. China.
authors.forename: Pingping
authors.initials: P
authors.lastname: Jiang
authors.affiliation: Key Laboratory of Food Colloids and Biotechnology, (Ministry of Education of China), School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, P.R. China.
authors.forename: Guangli
authors.initials: G
authors.lastname: Wang
authors.affiliation: Key Laboratory of Food Colloids and Biotechnology, (Ministry of Education of China), School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, P.R. China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Food Colloids and Biotechnology, (Ministry of Education of China), School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, P.R. China.
authors.forename: Xiuming
authors.initials: X
authors.lastname: Wu
authors.affiliation: Key Laboratory of Food Colloids and Biotechnology, (Ministry of Education of China), School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, P.R. China.
authors.forename: Chi
authors.initials: C
authors.lastname: Zhang
mesh_terms: D001391:Azo Compounds / Q000737:chemistry*; D001729:Bismuth / Q000737:chemistry*; D002384:Catalysis; D008027:Light; D010087:Oxides / Q000737:chemistry; D010782:Photolysis; D017382:Reactive Oxygen Species / Q000737:chemistry; D012834:Silver / Q000737:chemistry*; D017973:Tungsten Compounds / Q000737:chemistry*
chemical_list: D001391:Azo Compounds; D010087:Oxides; D017382:Reactive Oxygen Species; D017973:Tungsten Compounds; D012834:Silver; C100258:methyl orange; D001729:Bismuth
keywords: electron transfer; photocatalysts; photochemistry; silver; tungstates