文献类型：期刊文献

英文题名：Insights into free radical and non-radical routes regulation for water cleanup

作者：Zhou, Yi[1,2,3];Guo, Wenxuan[2];Li, Yanpan[2];Gao, Ming[2];Li, Xuning[4];Liu, Wenyuan[1,5];Chen, Zhuan[1,5];Zhang, Xiaohui[2];Zhou, Yanbo[2,3];Xing, Mingyang[1,2,5]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai, Peoples R China;[3]Shanghai Inst Pollut Control & Ecol Secur, Shanghai, Peoples R China;[4]Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian, Peoples R China;[5]East China Univ Sci & Technol, Shanghai Engn Res Ctr Multimedia Environm Catalysi, Shanghai, Peoples R China

年份：2025

卷号：16

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001554898500008)】；

基金：This work was supported by National Natural Science Foundation of China (No.22376065, 22325602, 22176060), and the Program of Shanghai Academic/Technology Research Leader (23XD1421000). Project supported by Shanghai Municipal Science and Technology Major Project (Grant No.2018SHZDZX03) and the Program of Introducing Talents of Discipline to Universities (B16017). Science and Technology Commission of Shanghai Municipality (20DZ2250400, 22ZR1418600). Authors thank Research Center of Analysis and Test of East China University of Science and Technology for the help on the characterization.

语种：英文

摘要：In the field of wastewater treatment, the regulation of free radical and non-radical routes has been one of the major challenges. This study investigates the regulation of radical and non-radical oxidation pathways in the peroxymonosulfate (PMS) oxidation system by controlling the calcination temperature of carbon materials and constructing bimetallic single-atom catalysts (NC-FeMn(TA)). Density functional theory calculations and experimental tests indicate that increasing the pyridinic nitrogen content and incorporating single metal atoms in nitrogen-doped carbon materials result in a predominantly non-radical oxidation process. In contrast, enhancing the content of graphitic and pyrrolic nitrogen species and introducing bimetallic catalytic centers promote a radical oxidation pathway. The NC-FeMn(TA)/PMS system demonstrates high oxidation performance over a broad pH range, exhibiting significant interference resistance and stability, with 100% degradation of target pollutants after 22 cycles and complete removal of emerging pollutants (including pharmaceuticals and personal care products, endocrine disrupting chemicals, dyes and chemical materials) within 5 min. This system's remarkable performance suggests broad application potential in water pollution control field.