Self-sensitized photochlorination of benzo[a]pyrene in saline water under simulated solar light irradiation
文献类型：期刊论文
| 作者 | Yang, Mina2; Zhang, Haijing1; Chang, Fei3; Hu, Xuefeng1,2
|
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2021-04-15 |
| 卷号 | 408页码:7 |
| 关键词 | Photochlorination Benzo[a]Pyrene Self-sensitized Saline water Solar light |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2020.124445 |
| 通讯作者 | Hu, Xuefeng(huxuefeng@sust.edu.cn) |
| 英文摘要 | Chlorinated organic compounds are ubiquitously detected in saline waters. The photochlorination of organic compounds is one possible source, and chlorine radicals originating from other photosensitive substances have been reported to be responsible for organic compounds chlorination in previous reports. In this study, benzo[a] pyrene (BaP) chlorination in 10% acetonitrile/NaCl aqueous solution was initiated by self-sensitization of BaP, while chlorine radicals were not involved in the reaction. After 45 min of photoreaction in four seawater samples, chlorinated product (6-ClBaP) accounted for 10-17% of the fraction of transformed BaP, which was higher than that previously reported. The influences of Cl-, pH, humic acid, electron donors, and particulate matter on the formation of chlorobenzo[a]pyrene were systematically investigated. A self-sensitized photochlorination reaction mechanism was proposed as follow: photoexited BaP was activated to singlet state and then transformed to triplet state through inter-system crossing. Then the excited triplet state and oxygen formed [(BaP)-Ba-3*-O-3(2)] or [BaP-O-1(2)] complex, which further reacted with Cl- to produce 6-ClBaP. |
| 资助项目 | National Natural Science Foundation of China[41076040] ; Shaanxi Thousand Talents Plan-Youth Program Scholars |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000620463700001 |
| 资助机构 | National Natural Science Foundation of China ; Shaanxi Thousand Talents Plan-Youth Program Scholars |
| 源URL | [http://ir.yic.ac.cn/handle/133337/27426]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 烟台海岸带研究所_近岸生态与环境实验室 |
| 通讯作者 | Hu, Xuefeng |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China 2.Shaanxi Univ Sci & Technol, Sch Environm Sci & Engn, Xian 710021, Peoples R China 3.Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Mina,Zhang, Haijing,Chang, Fei,et al. Self-sensitized photochlorination of benzo[a]pyrene in saline water under simulated solar light irradiation[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,408:7. |
| APA | Yang, Mina,Zhang, Haijing,Chang, Fei,&Hu, Xuefeng.(2021).Self-sensitized photochlorination of benzo[a]pyrene in saline water under simulated solar light irradiation.JOURNAL OF HAZARDOUS MATERIALS,408,7. |
| MLA | Yang, Mina,et al."Self-sensitized photochlorination of benzo[a]pyrene in saline water under simulated solar light irradiation".JOURNAL OF HAZARDOUS MATERIALS 408(2021):7. |
入库方式： OAI收割
来源：烟台海岸带研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。