Trace Cupric Species Triggered Decomposition of Peroxymonosulfate and Degradation of Organic Pollutants: Cu(III) Being the Primary and Selective Intermediate Oxidant
文献类型：期刊论文
| 作者 | Wang, Lihong; Xu, Haodan; Jiang, Ning ; Wang, Zimeng; Jiang, Jin; Zhang, Tao
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2020-04-07 |
| 卷号 | 54期号:7页码:4686-4694 |
| ISSN号 | 0013-936X |
| 英文摘要 | Activation of persulfates to degrade refractory organic pollutants is currently a hot topic of advanced oxidation. Developing simple and effective activation approaches is crucial for the practical application of persulfates. We report in this research that trace cupric species (Cu(II) in several mu M) can efficiently trigger peroxymonosulfate (PMS) oxidation of various organic pollutants under slightly alkaline conditions. The intermediate oxidant dominating this process was investigated with electron paramagnetic resonance (EPR), chemical probing, and in situ Raman spectroscopy. Unlike conventional PMS activation, which generates sulfate radical, hydroxyl radical, or singlet oxygen as major oxidants, Cu(III) was confirmed to be the primary and selective intermediate oxidant during the Cu(II)/PMS oxidation. Hydroxyl radical is the secondary intermediate oxidant formed from the reaction of Cu(III) with OH-. Hybrid oxidation by the two oxidants imparts Cu(II)/PMS with high efficiency in the degradation of a series of pollutants. The results of this work suggest that, with no need of introducing complex catalysts, trace Cu(II) inherent in or artificially introduced to some water or wastewater can effectively trigger PMS oxidation of organic pollutants. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45008]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Lihong,Xu, Haodan,Jiang, Ning,et al. Trace Cupric Species Triggered Decomposition of Peroxymonosulfate and Degradation of Organic Pollutants: Cu(III) Being the Primary and Selective Intermediate Oxidant[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2020,54(7):4686-4694. |
| APA | Wang, Lihong,Xu, Haodan,Jiang, Ning,Wang, Zimeng,Jiang, Jin,&Zhang, Tao.(2020).Trace Cupric Species Triggered Decomposition of Peroxymonosulfate and Degradation of Organic Pollutants: Cu(III) Being the Primary and Selective Intermediate Oxidant.ENVIRONMENTAL SCIENCE & TECHNOLOGY,54(7),4686-4694. |
| MLA | Wang, Lihong,et al."Trace Cupric Species Triggered Decomposition of Peroxymonosulfate and Degradation of Organic Pollutants: Cu(III) Being the Primary and Selective Intermediate Oxidant".ENVIRONMENTAL SCIENCE & TECHNOLOGY 54.7(2020):4686-4694. |
入库方式： OAI收割
来源：生态环境研究中心
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