Major influence of hydroxyl and nitrate radicals on air pollution by environmentally persistent free radicals
文献类型：期刊论文
| 作者 | Pan, Wenxiao; Chang, Jiamin; He, Shuming; Xue, Qiao; Liu, Xian; Fu, Jianjie ; Zhang, Aiqian
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| 刊名 | ENVIRONMENTAL CHEMISTRY LETTERS
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| 页码 | - |
| 关键词 | EPFRs Coexisting species Atmospheric removal mechanism Quantum chemical calculations Kinetics analysis |
| ISSN号 | 1610-3653 |
| 英文摘要 | Environmentally persistent free radicals are pollutants recently detected in most environmental matrices such as fly ash, aerosols, soils and sediments. Their generation and transformation is poorly known, notably in the atmopshere. Here we modeled the effect of dioxygen O-2, hydroxyl radical (OH)-O-center dot, and nitrate radical NO3 on Cu(II)O surface-bound phenoxyl radical, using quantum chemical calculations and kinetics analysis. Results show that additional stabilization of the surface-bound phenoxyl radical is provided by the metal-oxide surface, implying that self-decomposition is not likely to occur. The addition reactions of hydroxyl and nitrate radicals with surface-mediated radicals are both thermodynamically and kinetically favorable, whereas the role of O-2 appears negligible. The tropospheric lifetime of the Cu(II)O-based surface-bound phenoxyl radical is only few seconds to about one hour, in agreement with experimental observations from the literature. |
| WOS研究方向 | Chemistry, Multidisciplinary ; Engineering, Environmental ; Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45770]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Hangzhou Inst Adv Study, Sch Environm, Hangzhou 310012, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pan, Wenxiao,Chang, Jiamin,He, Shuming,et al. Major influence of hydroxyl and nitrate radicals on air pollution by environmentally persistent free radicals[J]. ENVIRONMENTAL CHEMISTRY LETTERS:-. |
| APA | Pan, Wenxiao.,Chang, Jiamin.,He, Shuming.,Xue, Qiao.,Liu, Xian.,...&Zhang, Aiqian. |
| MLA | Pan, Wenxiao,et al."Major influence of hydroxyl and nitrate radicals on air pollution by environmentally persistent free radicals".ENVIRONMENTAL CHEMISTRY LETTERS |
入库方式： OAI收割
来源：生态环境研究中心
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