PMID- 31896184
OWN - NLM
STAT- MEDLINE
DCOM- 20200225
LR  - 20221207
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 242
DP  - 2020 Mar
TI  - Synergistic coupling Co(3)Fe(7) alloy and CoFe(2)O(4) spinel for highly efficient 
      removal of 2,4-dichlorophenol by activating peroxymonosulfate.
PG  - 125244
LID - S0045-6535(19)32484-1 [pii]
LID - 10.1016/j.chemosphere.2019.125244 [doi]
AB  - Efficient wastewater restoration depends on the robustness and capability of the 
      catalyst to promote sophisticated decontamination technologies. In this study, 
      Co(3)Fe(7)-CoFe(2)O(4) nanoparticles (NPs) prepared by facile pyrolysis were 
      completely characterized and used to decompose 2,4-dichlorophenol (2,4-DCP). 
      Furthermore, the catalytic performance and relevant mechanisms involved in the 
      activation of peroxymonosulfate (PMS) were also investigated. The optimal 
      conditions were achieved at the catalyst loading of 0.05 g L(-1), PMS dosage of 
      1.26 g L(-1), and pH of 7.7 through the response surface methodology by using the 
      Box-Behnken design model. Under optimal conditions, 97.1% efficiency of 2,4-DCP 
      removal was obtained within 30 min. Moreover, the quenching experiments and 
      electron paramagnetic resonance result indicated that sulfate (SO(4)(*-)) and 
      hydroxyl (HO(*)) radicals were considered as the dominant reactive oxygen 
      species, which resulted in the effective removal of 2,4-DCP in the 
      Co(3)Fe(7)-CoFe(2)O(4)/PMS system. Moreover, Co(3)Fe(7)-CoFe(2)O(4) showed 
      efficient catalytic performance in continuous five runs and exhibited less metal 
      leaching of 0.052 and 0.036 mg L(-1) for Co and Fe species, respectively. 
      Furthermore, no considerable change was observed in the structural 
      characteristics of the fresh and used Co(3)Fe(7)-CoFe(2)O(4) catalytic system. 
      The above-mentioned results indicated that the synergistic effects between 
      Co(3)Fe(7) alloy and CoFe(2)O(4) spinel not only significantly improved the 
      activity and long-term durability of the catalyst, but also accelerated the 
      Co(3+)/Co(2+) and Fe(3+)/Fe(2+) redox cycles. Overall, the 
      Co(3)Fe(7)-CoFe(2)O(4)/PMS system provides a novel advanced oxidation approach to 
      further develop multifunctional transition metal-based nanomaterials responsible 
      for producing surface-bound radicals and enhancing the remediation of refractory 
      pollutants in the environmental application.
CI  - Copyright (c) 2019 Elsevier Ltd. All rights reserved.
FAU - Zhou, Yanbo
AU  - Zhou Y
AD  - School of Resources and Civil Engineering, Northeastern University, Shenyang, 
      110819, PR China.
FAU - Zhang, Yongli
AU  - Zhang Y
AD  - School of Environment and Chemical Engineering, Foshan University, Foshan, 
      528000, PR China.
FAU - Hu, Xiaomin
AU  - Hu X
AD  - School of Resources and Civil Engineering, Northeastern University, Shenyang, 
      110819, PR China. Electronic address: hxmin_jj@163.com.
LA  - eng
PT  - Journal Article
DEP - 20191101
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Alloys)
RN  - 0 (Chlorophenols)
RN  - 0 (Peroxides)
RN  - 0 (Phenols)
RN  - 0 (Waste Water)
RN  - 0 (spinell)
RN  - 22047-43-4 (peroxymonosulfate)
RN  - 3A3U0GI71G (Magnesium Oxide)
RN  - LMI26O6933 (Aluminum Oxide)
RN  - R669TG1950 (2,4-dichlorophenol)
SB  - IM
MH  - Alloys
MH  - Aluminum Oxide/*chemistry
MH  - Catalysis
MH  - Chlorophenols/*chemistry
MH  - Magnesium Oxide/*chemistry
MH  - Nanoparticles/chemistry
MH  - Oxidation-Reduction
MH  - Peroxides/*chemistry
MH  - Phenols
MH  - Waste Disposal, Fluid/*methods
MH  - Wastewater
OTO - NOTNLM
OT  - 2,4-Dichlorophenol
OT  - Co(3)Fe(7)-CoFe(2)O(4)
OT  - Peroxymonosulfate
OT  - Reaction mechanism
OT  - Sulfate radical
EDAT- 2020/01/04 06:00
MHDA- 2020/02/26 06:00
CRDT- 2020/01/04 06:00
PHST- 2019/07/31 00:00 [received]
PHST- 2019/10/12 00:00 [revised]
PHST- 2019/10/27 00:00 [accepted]
PHST- 2020/01/04 06:00 [entrez]
PHST- 2020/01/04 06:00 [pubmed]
PHST- 2020/02/26 06:00 [medline]
AID - S0045-6535(19)32484-1 [pii]
AID - 10.1016/j.chemosphere.2019.125244 [doi]
PST - ppublish
SO  - Chemosphere. 2020 Mar;242:125244. doi: 10.1016/j.chemosphere.2019.125244. Epub 
      2019 Nov 1.