PMID- 37866532 OWN - NLM STAT- MEDLINE DCOM- 20231123 LR - 20231123 IS - 1096-0953 (Electronic) IS - 0013-9351 (Linking) VI - 240 IP - Pt 1 DP - 2024 Jan 1 TI - Fe and Zn co-doped carbon nanoparticles as peroxymonosulfate activator for efficient 2,4-dichorophenol degradation. PG - 117313 LID - S0013-9351(23)02117-5 [pii] LID - 10.1016/j.envres.2023.117313 [doi] AB - Iron-mediated activation of peroxymonosulfate (PMS) has been of great interest for the effective removal of contaminants, but it still suffered from ineffective metal redox cycle rate, which resulted in unsatisfactory catalytic efficiency. Constructing bimetallic carbonaceous materials was effective way to improve the catalytic performance of iron-based heterogeneous system. In this study, magnetic bimetallic porous carbon composite (FZC(x)) was synthesized via Fe/Zn bi-MOFs pyrolysis for 2,4-dichlorophenol (2,4-DCP) degradation by peroxymonosulfate. Influences of different systems exhibited that 100% of 2,4-DCP was rapidly degraded at the conditions of catalyst dosage = 0.1 g L(-1), PMS = 0.5 mM and initial pH = 9.0 within 30 min. The as-prepared FZC(600) displayed excellent reusability and stability. Quenching experiments and EPR analysis manifested that SO(4)(.-) and (1)O(2) were primarily responsible for the rapid degradation of 2,4-DCP. Moreover, XPS, EPR and EIS was used to elaborate the bimetallic synergy effect, proving that the introduction of zinc can effectively promote periodic cycle of Fe(2+)/Fe(3+) and improve catalysts durability and reusability. These findings highlighted the preparation of bimetallic based carbonaceous material with excellent PMS activation ability to remove refractory organics from wastewater and provided a depth insight into the promotion of bimetal synergy between zinc and iron on PMS activation process. CI - Copyright (c) 2023 Elsevier Inc. All rights reserved. FAU - Qiu, Xiaojie AU - Qiu X AD - School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China. FAU - Zhao, Yingxin AU - Zhao Y AD - School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China. Electronic address: yingxinzhao@tju.edu.cn. FAU - Jia, Zichen AU - Jia Z AD - School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China. FAU - Li, Chenxi AU - Li C AD - School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China. FAU - Jin, Ruotong AU - Jin R AD - School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China. FAU - Mutabazi, Emmanuel AU - Mutabazi E AD - School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, China. LA - eng PT - Journal Article DEP - 20231020 PL - Netherlands TA - Environ Res JT - Environmental research JID - 0147621 RN - 22047-43-4 (peroxymonosulfate) RN - E1UOL152H7 (Iron) RN - J41CSQ7QDS (Zinc) RN - 7440-44-0 (Carbon) SB - IM MH - *Iron MH - Zinc MH - Carbon MH - *Nanoparticles OTO - NOTNLM OT - 2,4-Dichlorophenol degradation OT - Bimetallic catalyst OT - Peroxymonosulfate OT - Zinc doping COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/10/23 00:45 MHDA- 2023/11/23 06:42 CRDT- 2023/10/22 19:30 PHST- 2023/08/10 00:00 [received] PHST- 2023/09/17 00:00 [revised] PHST- 2023/09/29 00:00 [accepted] PHST- 2023/11/23 06:42 [medline] PHST- 2023/10/23 00:45 [pubmed] PHST- 2023/10/22 19:30 [entrez] AID - S0013-9351(23)02117-5 [pii] AID - 10.1016/j.envres.2023.117313 [doi] PST - ppublish SO - Environ Res. 2024 Jan 1;240(Pt 1):117313. doi: 10.1016/j.envres.2023.117313. Epub 2023 Oct 20.