title: Aniline chlorination by in situ formed Ag-Cl complexes under simulated solar light irradiation.
abstract: Ag speciation in a chloride medium was dependent upon the Cl/Ag ratio after releasing into surface water. In this study, the photoreaction of in situ formed Ag-Cl species and their effects on aniline photochlorination were systematically investigated. Our results suggested that formation of chloroaniline was strongly relevant to the Cl/Ag ratio and could be interpreted using the thermodynamically expected speciation of Ag in the presence of Cl-. AgCl was the main species responsible for the photochlorination of aniline. Both photoinduced hole and •OH drove the oxidation of Cl- to radical •Cl, which promoted the chlorination of aniline. Ag0 formation was observed from the surface plasmon resonance absorption during AgCl photoreaction. This study revealed that Ag+ released into Cl--containing water may result in the formation of chlorinated intermediates of organic compounds under solar light irradiation.
authors.affiliation: Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China E-mail: xfhu@yic.ac.cn; University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Hu
authors.affiliation: Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China E-mail: xfhu@yic.ac.cn; University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Xiaowen
authors.initials: X
authors.lastname: Wang
authors.affiliation: Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China E-mail: xfhu@yic.ac.cn; Environmental and Material Engineering, Yantai University, Yantai, Shandong 264005, China.
authors.forename: Liuliu
authors.initials: L
authors.lastname: Dong
authors.affiliation: School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Chang
authors.affiliation: Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China E-mail: xfhu@yic.ac.cn; University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Yongming
authors.initials: Y
authors.lastname: Luo
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry / Q000528:radiation effects*; D002712:Chlorides / Q000737:chemistry / Q000528:radiation effects*; D054879:Halogenation / Q000528:radiation effects*; D006863:Hydrogen-Ion Concentration; D010084:Oxidation-Reduction; D012834:Silver / Q000737:chemistry*; D013472:Sunlight; D020349:Surface Plasmon Resonance; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000528:radiation effects*
chemical_list: D000814:Aniline Compounds; D002712:Chlorides; D014874:Water Pollutants, Chemical; D012834:Silver; C023650:aniline