Trace Cupric Species Triggered Decomposition of Peroxymonosulfate and Degradation of Organic Pollutants: Cu(III) Being the Primary and Selective Intermediate Oxidant
Chinese Academy of Sciences · Harbin Institute of Technology · +3 more institutions
Abstract
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 μM) 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)…
Citation impact
- FWCI
- 23.89
- Percentile
- 100%
- References
- 71
Authors
6- LWLihong Wang
Chinese Academy of Sciences, Harbin Institute of Technology, Research Center for Eco-Environmental Sciences
- HXHaodan Xu
Chinese Academy of Sciences, Harbin Institute of Technology, Research Center for Eco-Environmental Sciences
- NJNing Jiang
Chinese Academy of Sciences, Research Center for Eco-Environmental Sciences
- ZWZimeng Wang
Fudan University
- JJJin JiangCorresponding
Guangdong University of Technology, Harbin Institute of Technology
Topics & keywords
- Chemistry
- Singlet oxygen
- Hydroxyl radical
- Pollutant
- Catalysis
- Decomposition
- Electron paramagnetic resonance
- Degradation (telecommunications)
- Clean water and sanitation