PMID- 36804632
OWN - NLM
STAT- MEDLINE
DCOM- 20230313
LR  - 20230313
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 322
DP  - 2023 May
TI  - Effective degradation of 2,4,4'-trichlorodiphenyl by Fe(3)C@Fe-800 activated 
      peroxymonosulfate: Superoxide radical and singlet oxygen-dominated advanced 
      oxidation process.
PG  - 138164
LID - S0045-6535(23)00431-9 [pii]
LID - 10.1016/j.chemosphere.2023.138164 [doi]
AB  - Polychlorinated biphenyls (PCBs) degradation by peroxymonosulfate (PMS) 
      activation through *OH and SO(4)(*-) radical oxidation process was the effective 
      technology in the last decades; however, there were few research focusing on 
      removing PCBs by O(2)(*-) and (1)O(2) induced by PMS activation. In this work, 
      90.86% of 2,4,4-trichlorodiphenyl (PCB 28) was degraded by 0.3 g/L Fe(3)C@Fe-800 
      activated 0.5 mM PMS system under the synergistic action of O(2)(*-) and (1)O(2). 
      The structures of Fe(3)C@Fe-800 were identified by Scanning electron microscope 
      (SEM), High resolution-transmission electron microscopy (HR-TEM), X-ray 
      photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller (BET), Raman spectra and 
      Fourier transform infrared (FT-IR) spectra. Electron paramagnetic resonance (EPR) 
      measurements and quenching tests verified that O(2)(*-) and (1)O(2) were the 
      primary reactive species in Fe(3)C@Fe-800/PMS/PCB 28 ternary reaction system. 
      Density functional theory (DFT), Linear sweep voltammetry (LSV), and 
      chronoamperometry test revealed that electron-deficient Fe atoms on Fe(3)C were 
      the main active sites in Fe(3)C@Fe-800 for PMS activation to generate (1)O(2). 
      Unlike the reported *OH and SO(4)(*-) mediated degradation induced by the 
      iron-based catalyst, both O(2)(*-) and (1)O(2) contributed to PCB 28 degradation： 
      nucleophilic dichlorination reaction by O(2)(*-) and then ring-open oxidation 
      process by (1)O(2). Fe(3)C@Fe-800/PMS system had excellent catalytic performance 
      under different reaction conditions and possessed desirable inorganic salt and 
      natural organic matter resistance. This work elucidated the important role of 
      Fe(3)C in PMS activation to generate O(2)(*-) and (1)O(2) for PCB 28 
      decontamination by nonradical way and provided a clue to design rationally 
      catalysts in polychlorinated biphenyl pollution remediation.
CI  - Copyright (c) 2023 Elsevier Ltd. All rights reserved.
FAU - Li, Jie
AU  - Li J
AD  - School of Environment and Energy, South China University of Technology, 
      Guangzhou, 510006, China.
FAU - Yin, Hua
AU  - Yin H
AD  - School of Environment and Energy, South China University of Technology, 
      Guangzhou, 510006, China; Key Laboratory of Ministry of Education on Pollution 
      Control and Ecosystem Restoration in Industry Clusters, Guangzhou, 510006, China; 
      Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and 
      Recycling, Guangzhou, 510006, China. Electronic address: huayin@scut.edu.cn.
FAU - Luo, Haoyu
AU  - Luo H
AD  - School of Environment and Energy, South China University of Technology, 
      Guangzhou, 510006, China.
FAU - Li, Yingchao
AU  - Li Y
AD  - School of Environment and Energy, South China University of Technology, 
      Guangzhou, 510006, China.
FAU - Rong, Xufa
AU  - Rong X
AD  - School of Environment and Energy, South China University of Technology, 
      Guangzhou, 510006, China.
FAU - Dang, Zhi
AU  - Dang Z
AD  - School of Environment and Energy, South China University of Technology, 
      Guangzhou, 510006, China; Key Laboratory of Ministry of Education on Pollution 
      Control and Ecosystem Restoration in Industry Clusters, Guangzhou, 510006, China; 
      Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and 
      Recycling, Guangzhou, 510006, China.
LA  - eng
PT  - Journal Article
DEP - 20230217
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 22047-43-4 (peroxymonosulfate)
RN  - 11062-77-4 (Superoxides)
RN  - 844ODP31Q0 (2,4,4'-trichlorobiphenyl)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
RN  - 17778-80-2 (Singlet Oxygen)
RN  - 0 (Peroxides)
SB  - IM
MH  - *Superoxides
MH  - *Polychlorinated Biphenyls
MH  - Singlet Oxygen
MH  - Spectroscopy, Fourier Transform Infrared
MH  - Peroxides/chemistry
OTO - NOTNLM
OT  - 2,4',4-trichlorodiphenyl
OT  - Degradation
OT  - Fe(3)C
OT  - Nonradical pathway
OT  - PMS
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- 2023/02/23 06:00
MHDA- 2023/03/14 06:00
CRDT- 2023/02/22 08:53
PHST- 2022/11/24 00:00 [received]
PHST- 2023/01/26 00:00 [revised]
PHST- 2023/02/14 00:00 [accepted]
PHST- 2023/02/23 06:00 [pubmed]
PHST- 2023/03/14 06:00 [medline]
PHST- 2023/02/22 08:53 [entrez]
AID - S0045-6535(23)00431-9 [pii]
AID - 10.1016/j.chemosphere.2023.138164 [doi]
PST - ppublish
SO  - Chemosphere. 2023 May;322:138164. doi: 10.1016/j.chemosphere.2023.138164. Epub 
      2023 Feb 17.