PMID- 34843835
OWN - NLM
STAT- MEDLINE
DCOM- 20220203
LR  - 20220203
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 291
IP  - Pt 3
DP  - 2022 Mar
TI  - Insights into the mechanism of redox pairs and oxygen vacancies of 
      Fe(2)O(3)@CoFe(2)O(4) hybrids for efficient refractory organic pollutants 
      degradation.
PG  - 133069
LID - S0045-6535(21)03541-4 [pii]
LID - 10.1016/j.chemosphere.2021.133069 [doi]
AB  - The core-shell Fe(2)O(3)@CoFe(2)O(4) hybrids microspheres with abundant oxygen 
      vacancies were synthesized through in-situ ion exchange-calcination method and 
      employed to induce peroxymonosulfate (PMS) to eliminate organic pollutants. The 
      superior catalytic activity and stability of Fe(2)O(3)@CoFe(2)O(4) were 
      attributed to the synergistic effects of M(2+)/M(3+) (M denotes Co or Fe) redox 
      cycles. SO(4)(.-), .OH, O(2)(.-) and (1)O(2) were proved to be the main reactive 
      oxygen species (ROS) involved in the phenol degradation process through quenching 
      experiments and EPR measurements, while the surface-bound SO(4)(.-) played a 
      dominant role. Trace metal ions leached during the reaction enhanced the PMS 
      activation, and the oxygen vacancies electron transfer process played a critical 
      role in the formation of O(2)(.-)/(1)O(2) and the cycle of M(2+)/M(3+) redox 
      pairs. The formation of ROS and function of (1)O(2) were also revealed from bulk 
      reaction and interface reaction. This study highlighted the simultaneous 
      evolution of PMS reduction and oxidation to generate ROS, which provided an 
      insight into the efficient catalytic degradation of persistent organic pollutants 
      (POPs).
CI  - Copyright (c) 2021. Published by Elsevier Ltd.
FAU - Meng, Fanyue
AU  - Meng F
AD  - Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, 
      School of Energy and Environment, Southeast University, Nanjing, 210096, China.
FAU - Yu, Lei
AU  - Yu L
AD  - Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, 
      School of Energy and Environment, Southeast University, Nanjing, 210096, China.
FAU - Song, Bing
AU  - Song B
AD  - Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, 
      School of Energy and Environment, Southeast University, Nanjing, 210096, China.
FAU - Zhao, Yan
AU  - Zhao Y
AD  - Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, 
      School of Energy and Environment, Southeast University, Nanjing, 210096, China.
FAU - Zhi, Zejian
AU  - Zhi Z
AD  - Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, 
      School of Energy and Environment, Southeast University, Nanjing, 210096, China.
FAU - Lin, Chenbin
AU  - Lin C
AD  - Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, 
      School of Energy and Environment, Southeast University, Nanjing, 210096, China.
FAU - Song, Min
AU  - Song M
AD  - Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, 
      School of Energy and Environment, Southeast University, Nanjing, 210096, China. 
      Electronic address: minsong@seu.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20211126
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Environmental Pollutants)
RN  - 0 (Peroxides)
RN  - S88TT14065 (Oxygen)
SB  - IM
MH  - *Environmental Pollutants
MH  - Oxidation-Reduction
MH  - Oxygen
MH  - Peroxides
OTO - NOTNLM
OT  - AOPs
OT  - Catalytic oxidation
OT  - Fe(2)O(3)@CoFe(2)O(4) hybrids
OT  - POPs
OT  - Peroxymonosulfate
OT  - Radical and non-radical
EDAT- 2021/11/30 06:00
MHDA- 2022/02/04 06:00
CRDT- 2021/11/29 20:13
PHST- 2021/08/30 00:00 [received]
PHST- 2021/11/09 00:00 [revised]
PHST- 2021/11/23 00:00 [accepted]
PHST- 2021/11/30 06:00 [pubmed]
PHST- 2022/02/04 06:00 [medline]
PHST- 2021/11/29 20:13 [entrez]
AID - S0045-6535(21)03541-4 [pii]
AID - 10.1016/j.chemosphere.2021.133069 [doi]
PST - ppublish
SO  - Chemosphere. 2022 Mar;291(Pt 3):133069. doi: 10.1016/j.chemosphere.2021.133069. 
      Epub 2021 Nov 26.