Peroxymonosulfate enhanced photoelectrocatalytic oxidation of organic contaminants and simultaneously cathodic recycling of silver
文献类型：期刊论文
| 作者 | Shao, Huixin ; Li, Xia; Zhang, Juanjuan; Zhao, Xu
|
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2022 |
| 卷号 | 120页码:1-10 |
| 关键词 | Peroxymonosulfate Photoelectrocatalysis Organic contaminants degradation Silver recycling Photographic effluents |
| ISSN号 | 1001-0742 |
| 英文摘要 | Degradation of organic contaminants with simultaneous recycling of Ag + from silvercontaining organic wastewater such as photographic effluents is desired. Although photoelectrocatalysis (PEC) technology is a good candidate for this type of wastewater, its reaction kinetics still needs to be improved. Herein, peroxymonosulfate (PMS) was employed to enhance the PEC kinetics for oxidation of phenol (PhOH) at the anode and reduction of Ag + at the cathode. The degradation efficiency of phenol (PhOH, 0.1 mmol/L) was increased from 42.8% to 96.9% by adding 5 mmol/L PMS at a potential of 0.25 V. Meanwhile, the Ag (by wt%) deposited on the cathode was 28.1% (Ag 2 O) in PEC process, while that of Ag (by wt%) was 69.7% (Ag 0 ) by adding PMS. According to the electrochemistry analysis, PMS, as photoelectrons acceptor, enhances the separation efficiency of charges and the direct h + oxidation of PhOH at the photoanode. Meantime, the increasing cathode potential avoided H 2 evolution and strongly alkaline at the surface of cathode, thus enabling the deposition of Ag + in the form of metallic silver with the help of PMS. In addition, PMS combined with PEC process was effective in treating photographic effluents. ?? 2022 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/48569]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 作者单位 | 1.Tongji University 2.University of Chinese Academy of Sciences, CAS 3.Research Center for Eco-Environmental Sciences (RCEES) 4.Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | Shao, Huixin,Li, Xia,Zhang, Juanjuan,et al. Peroxymonosulfate enhanced photoelectrocatalytic oxidation of organic contaminants and simultaneously cathodic recycling of silver[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2022,120:1-10. |
| APA | Shao, Huixin,Li, Xia,Zhang, Juanjuan,&Zhao, Xu.(2022).Peroxymonosulfate enhanced photoelectrocatalytic oxidation of organic contaminants and simultaneously cathodic recycling of silver.JOURNAL OF ENVIRONMENTAL SCIENCES,120,1-10. |
| MLA | Shao, Huixin,et al."Peroxymonosulfate enhanced photoelectrocatalytic oxidation of organic contaminants and simultaneously cathodic recycling of silver".JOURNAL OF ENVIRONMENTAL SCIENCES 120(2022):1-10. |
入库方式： OAI收割
来源：生态环境研究中心
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