PMID- 34974046 OWN - NLM STAT- MEDLINE DCOM- 20220302 LR - 20220302 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 293 DP - 2022 Apr TI - Facile synthesis of Mn, Ce co-doped g-C(3)N(4) composite for peroxymonosulfate activation towards organic contaminant degradation. PG - 133472 LID - S0045-6535(21)03946-1 [pii] LID - 10.1016/j.chemosphere.2021.133472 [doi] AB - Peroxymonosulfate (PMS)-based advanced oxidation processes for wastewater treatment have received extensive attention in the past years. Here, a novel Mn, Ce co-modified g-C(3)N(4) (MnCe-CN) composite was successfully synthesized by one-step pyrolysis for activating PMS. The physical and chemical characterization of MnCe-CN/PMS was conducted, indicating that Mn and Ce were evenly distributed on g-C(3)N(4) and existed in the form of Mn-N structure and CeO(2), respectively. The MnCe-CN/PMS system could effectively degrade pollutants such as acetaminophen (ACT), methylparaben (MeP), p-nitrophenol (PNP), and 2,4-dichlorophenol (2,4-DCP). Among them, 2,4-DCP could be rapidly degraded, reaching 100% within 30 min. The masking experiments and electrochemical testing results revealed that 2,4-DCP was degraded via superoxide radicals (O(2) -), singlet oxygen ((1)O(2)), and electron transfer path. The cyclic experiments and real water treatment experiments testified that the oxidative system had excellent stability and applicability. This study provides a facile synthetic method to fabricate bimetallic co-modified g-C(3)N(4) for the enhancement of PMS activation. CI - Copyright (c) 2022 Elsevier Ltd. All rights reserved. FAU - Lai, Cui AU - Lai C AD - College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China. Electronic address: laicui@hnu.edu.cn. FAU - Yan, Huchuan AU - Yan H AD - College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China. FAU - Wang, Dongbo AU - Wang D AD - College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China. Electronic address: dongbowang@hnu.edu.cn. FAU - Liu, Shiyu AU - Liu S AD - College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China. FAU - Zhou, Xuerong AU - Zhou X AD - College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China. FAU - Li, Xiaopei AU - Li X AD - College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China. FAU - Zhang, Mingming AU - Zhang M AD - College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China. FAU - Li, Ling AU - Li L AD - College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China. FAU - Fu, Yukui AU - Fu Y AD - College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China. FAU - Xu, Fuhang AU - Xu F AD - College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China. FAU - Yang, Xiaofeng AU - Yang X AD - College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China. FAU - Huo, Xiuqin AU - Huo X AD - College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China. LA - eng PT - Journal Article DEP - 20211230 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Peroxides) RN - 11062-77-4 (Superoxides) RN - 17778-80-2 (Singlet Oxygen) RN - 22047-43-4 (peroxymonosulfate) SB - IM MH - Oxidation-Reduction MH - *Peroxides/chemistry MH - *Singlet Oxygen MH - Superoxides OTO - NOTNLM OT - CeO(2) OT - Mn-N bond OT - Peroxymonosulfate OT - Singlet oxygen OT - Superoxide radical EDAT- 2022/01/03 06:00 MHDA- 2022/03/03 06:00 CRDT- 2022/01/02 20:21 PHST- 2021/09/25 00:00 [received] PHST- 2021/12/27 00:00 [revised] PHST- 2021/12/28 00:00 [accepted] PHST- 2022/01/03 06:00 [pubmed] PHST- 2022/03/03 06:00 [medline] PHST- 2022/01/02 20:21 [entrez] AID - S0045-6535(21)03946-1 [pii] AID - 10.1016/j.chemosphere.2021.133472 [doi] PST - ppublish SO - Chemosphere. 2022 Apr;293:133472. doi: 10.1016/j.chemosphere.2021.133472. Epub 2021 Dec 30.