PMID- 32683028
OWN - NLM
STAT- MEDLINE
DCOM- 20201007
LR  - 20221207
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 260
DP  - 2020 Dec
TI  - Enhanced electrochemical degradation of 2,4-dichlorophenol with the assist of 
      hydrochar.
PG  - 127643
LID - S0045-6535(20)31838-5 [pii]
LID - 10.1016/j.chemosphere.2020.127643 [doi]
AB  - Effective treatment of 2,4-dichlorophenol (2,4-DCP) in wastewater is essential, 
      as it could pose great threat to the environment. A hydrothermal biochar 
      (hydrochar) was used to assist the electrochemical oxidation treatment of 
      2,4-DCP. The removal of 2,4-DCP using hydrochar in anode and cathode area with 
      and without proton exchange membrane (PEM) under 3-9 V of electrolysis was 
      investigated. Enhanced 2,4-DCP degradation in the anode area was achieved 
      compared with the adsorption or electrolysis alone. The highest 2,4-DCP removal 
      ( approximately 76%) was obtained using the hydrochar in the anode area with PEM under 9 V. The 
      mechanism for the 2,4-DCP removal during the electrolysis included adsorption by 
      hydrochar and electrochemical degradation by the reactive oxygen species (ROS) 
      generated by the electrode as well as the persistent free radicals (PFR) on 
      hydrochar. The OH produced from anode was the predominant ROS contributing to the 
      2,4-DCP degradation under 9 V of electrolysis.
CI  - Copyright (c) 2020 Elsevier Ltd. All rights reserved.
FAU - Cao, Weiming
AU  - Cao W
AD  - College of Science, Shanghai University, Shanghai, 200444, China.
FAU - Zeng, Chaju
AU  - Zeng C
AD  - College of Science, Shanghai University, Shanghai, 200444, China.
FAU - Guo, Xiaofei
AU  - Guo X
AD  - College of Science, Shanghai University, Shanghai, 200444, China.
FAU - Liu, Qiang
AU  - Liu Q
AD  - School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 
      200444, China.
FAU - Zhang, Xiaolei
AU  - Zhang X
AD  - School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 
      200444, China. Electronic address: xiaolei1013@shu.edu.cn.
FAU - Mameda, Naresh
AU  - Mameda N
AD  - Advanced Institute of Water Industry, Kyungpook National University, 80 
      Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea.
LA  - eng
PT  - Journal Article
DEP - 20200712
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Chlorophenols)
RN  - 0 (Phenols)
RN  - 0 (Waste Water)
RN  - 0 (Water Pollutants, Chemical)
RN  - 0 (biochar)
RN  - 16291-96-6 (Charcoal)
RN  - R669TG1950 (2,4-dichlorophenol)
SB  - IM
MH  - Adsorption
MH  - Charcoal/*chemistry
MH  - Chlorophenols/*chemistry
MH  - Electrodes
MH  - Electrolysis
MH  - Oxidation-Reduction
MH  - Phenols
MH  - Wastewater
MH  - Water Pollutants, Chemical/*chemistry
OTO - NOTNLM
OT  - 2,4-Dichlorophenol
OT  - Electrolysis
OT  - Hydrochar
OT  - Reactive oxygen species
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- 2020/07/20 06:00
MHDA- 2020/10/08 06:00
CRDT- 2020/07/20 06:00
PHST- 2020/04/30 00:00 [received]
PHST- 2020/06/13 00:00 [revised]
PHST- 2020/07/05 00:00 [accepted]
PHST- 2020/07/20 06:00 [pubmed]
PHST- 2020/10/08 06:00 [medline]
PHST- 2020/07/20 06:00 [entrez]
AID - S0045-6535(20)31838-5 [pii]
AID - 10.1016/j.chemosphere.2020.127643 [doi]
PST - ppublish
SO  - Chemosphere. 2020 Dec;260:127643. doi: 10.1016/j.chemosphere.2020.127643. Epub 
      2020 Jul 12.