PMID- 37256401
OWN - NLM
STAT- MEDLINE
DCOM- 20230629
LR  - 20230629
IS  - 1614-7499 (Electronic)
IS  - 0944-1344 (Linking)
VI  - 30
IP  - 31
DP  - 2023 Jul
TI  - The reaction pathway and mechanism of 2,4-dichlorophenol removal by modified fly 
      ash-loaded nZVI/Ni particles.
PG  - 77408-77419
LID - 10.1007/s11356-023-27770-z [doi]
AB  - Nanoscale zero-valent iron (nZVI) is more valuable in environmental restoration 
      than other materials. Chemical treatment of fly ash (CFA) was employed as a 
      support material to disperse iron nickel bimetal nanoparticles (CFA-nZVI/Ni) to 
      remove 2,4-dichlorophenol (2,4-DCP). Batch experiments showed that 2,4-DCP was 
      completely removed by CFA-nZVI/Ni, and an optimal loading ratio was 8:1. The 
      degradation of 2,4-DCP by CFA-nZVI/Ni was a chemical control reaction with an 
      activation energy of 95.6 kJ mol(-1) and followed pseudo-first-order kinetics. 
      The addition of Cl(-) increased the removal rate of 2,4-DCP by 4%, while the 
      addition of CO(3)(2-) and SO(4)(2-) decreased the removal rate of 2,4-DCP by 32% 
      and 72.3%, respectively. The removal process of 2,4-DCP by CFA-nZVI/Ni included 
      adsorption and reduction. The 2-CP (7.1 mg/L) and 4-CP (11.6 mg/L) could be 
      converted to phenol using the CFA-nZVI/Ni system. Cl on the para-position of 
      2,4-DCP was simpler to remove than on the ortho-position. The following steps 
      were taken in the electrophilic substitution reaction between substituted phenols 
      and hydrogen radicals: 2,4-DCP > 2-CP > 4-CP > phenol. This research provides a 
      novel concept to effectively remove 2,4-DCP and mechanism analysis.
CI  - (c) 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, 
      part of Springer Nature.
FAU - Li, Yajun
AU  - Li Y
AD  - Faculty of Architecture, Civil and Transportation Engineering, Beijing University 
      of Technology, 100 Pingleyuan, Beijing, 100124, China.
FAU - Zhang, Yongxiang
AU  - Zhang Y
AUID- ORCID: 0000-0001-7713-0071
AD  - Faculty of Architecture, Civil and Transportation Engineering, Beijing University 
      of Technology, 100 Pingleyuan, Beijing, 100124, China. yxzhang@bjut.edu.cn.
FAU - Yang, Wenjing
AU  - Yang W
AD  - Faculty of Architecture, Civil and Transportation Engineering, Beijing University 
      of Technology, 100 Pingleyuan, Beijing, 100124, China.
FAU - Lin, Yuhui
AU  - Lin Y
AD  - Faculty of Architecture, Civil and Transportation Engineering, Beijing University 
      of Technology, 100 Pingleyuan, Beijing, 100124, China.
LA  - eng
PT  - Journal Article
DEP - 20230531
PL  - Germany
TA  - Environ Sci Pollut Res Int
JT  - Environmental science and pollution research international
JID - 9441769
RN  - E1UOL152H7 (Iron)
RN  - R669TG1950 (2,4-dichlorophenol)
RN  - 0 (Coal Ash)
RN  - 339NCG44TV (Phenol)
RN  - 0 (Chlorophenols)
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - Iron/analysis
MH  - Coal Ash/analysis
MH  - Phenol/analysis
MH  - *Chlorophenols/analysis
MH  - Adsorption
MH  - *Water Pollutants, Chemical/analysis
OTO - NOTNLM
OT  - 2,4-DCP
OT  - DFT
OT  - Fly ash
OT  - Nanoscale bimetallic
OT  - conservation of mass
EDAT- 2023/05/31 13:12
MHDA- 2023/06/29 06:43
CRDT- 2023/05/31 11:07
PHST- 2023/01/20 00:00 [received]
PHST- 2023/05/16 00:00 [accepted]
PHST- 2023/06/29 06:43 [medline]
PHST- 2023/05/31 13:12 [pubmed]
PHST- 2023/05/31 11:07 [entrez]
AID - 10.1007/s11356-023-27770-z [pii]
AID - 10.1007/s11356-023-27770-z [doi]
PST - ppublish
SO  - Environ Sci Pollut Res Int. 2023 Jul;30(31):77408-77419. doi: 
      10.1007/s11356-023-27770-z. Epub 2023 May 31.