New Insights into the Generation of Singlet Oxygen in the Metal-Free Peroxymonosulfate Activation Process: Important Role of Electron-Deficient Carbon Atoms

• Published in: Environmental science & technology Vol. 54; no. 2; pp. 1232 - 1241
• Main Authors: Gao, Yaowen, Chen, Zhenhuan, Zhu, Yue, Li, Tong, Hu, Chun
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 21.01.2020
• Subjects: Activation; Bisphenol A; Carbon; Carbon nitride; Catalytic activity; Electron paramagnetic resonance; Electrons; Environmental degradation; Industrial wastes; Industrial wastewater; Nitrogen; Oxidation; Oxidation process; Oxygen; Peroxides; Photoelectron spectroscopy; Photoelectrons; Pollutants; Reaction kinetics; Reactive oxygen species; Singlet Oxygen; Wastewater; Wastewater treatment

A nonradical oxidation process via metal-free peroxymonosulfate (PMS) activation has recently attracted considerable attention for organic pollutant degradation; however, the origin of singlet oxygen (1O2) generation still remains controversial. In this study, nitrogen-doped carbon nanosheets (NCN-9...