Synergetic Hydroxyl Radical Oxidation with Atomic Hydrogen Reduction Lowers the Organochlorine Conversion Barrier and Potentiates Effective Contaminant Mineralization
文献类型：期刊论文
| 作者 | Zhang, Jun; Zhang, Gong; Lan, Huachun; Qu, Jiuhui ; Liu, Huijuan
|
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2021-03-02 |
| 卷号 | 55期号:5页码:3296-3304 |
| ISSN号 | 0013-936X |
| 英文摘要 | For effective treatment and reuse of wastewater, removal of organo-chlorines is an important consideration. Oxidation or reduction of these compounds by one-component free radicals is difficult because of the high-energy barrier. Theoretical calculations predict that redox synergy can significantly lower the energy barriers. Hence, we developed an energy-efficient dual photoelectrode photoelectrochemical system wherein the oxidized and reduced radicals coexist. Taking p-chloroaniline as an example, the atomic hydrogen first initiates nucleophilic hydrodechlorination to form a critical intermediate followed by the electrophilic oxidation of the hydroxyl radical; the process shows stable free-energy changes. Compared to oxidation alone, the reaction rate and mineralization in the redox synergy system were similar to 4.5 and similar to 2.1 times higher, respectively. Nitrogen was also completely removed via this system. The full life cycle assessment with power consumption as the boundary showed that the proposed system was sustainable and highly energy efficient, ensuring its application in organochlorine wastewater treatment. |
| WOS研究方向 | Engineering, Environmental ; Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46078]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 2.Tsinghua Univ, Ctr Water & Ecol, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Jun,Zhang, Gong,Lan, Huachun,et al. Synergetic Hydroxyl Radical Oxidation with Atomic Hydrogen Reduction Lowers the Organochlorine Conversion Barrier and Potentiates Effective Contaminant Mineralization[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2021,55(5):3296-3304. |
| APA | Zhang, Jun,Zhang, Gong,Lan, Huachun,Qu, Jiuhui,&Liu, Huijuan.(2021).Synergetic Hydroxyl Radical Oxidation with Atomic Hydrogen Reduction Lowers the Organochlorine Conversion Barrier and Potentiates Effective Contaminant Mineralization.ENVIRONMENTAL SCIENCE & TECHNOLOGY,55(5),3296-3304. |
| MLA | Zhang, Jun,et al."Synergetic Hydroxyl Radical Oxidation with Atomic Hydrogen Reduction Lowers the Organochlorine Conversion Barrier and Potentiates Effective Contaminant Mineralization".ENVIRONMENTAL SCIENCE & TECHNOLOGY 55.5(2021):3296-3304. |
入库方式： OAI收割
来源：生态环境研究中心
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