PMID- 36907348
OWN - NLM
STAT- MEDLINE
DCOM- 20230417
LR  - 20230417
IS  - 1096-0953 (Electronic)
IS  - 0013-9351 (Linking)
VI  - 226
DP  - 2023 Jun 1
TI  - Insights into the mechanism of persulfate activation with carbonated waste metal 
      adsorbed resin for the degradation of 2,4-dichlorophenol.
PG  - 115639
LID - S0013-9351(23)00431-0 [pii]
LID - 10.1016/j.envres.2023.115639 [doi]
AB  - Superabsorbent resin (SAR) saturated with heavy metals poses a threat to 
      surrounding ecosystem. To promote the reutilization of waste, resins adsorbed by 
      Fe(2+) and Cu(2+) were carbonized and used as catalysts (Fe@C/Cu@C) to activate 
      persulfate (PS) for 2,4-dichlorophenol (2,4-DCP) degradation. The heterogeneous 
      catalytic reaction was mainly responsible for 2,4-DCP removal. The synergistic 
      effect of Fe@C and Cu@C was propitious to 2,4-DCP degradation. Fe@C/Cu@C with a 
      ratio of 2:1 showed the highest performance of 2,4-DCP removal. 40 mg/L 2,4-DCP 
      was completely removed within 90 min under reaction conditions of 5 mM PS, 
      pH = 7.0 and T = 25  degrees C. The cooperation of Fe@C and Cu@C facilitated the redox 
      cycling of Fe and Cu species to supply accessible PS activation sites, enhancing 
      ROS generation for 2,4-DCP degradation. Carbon skeleton enhanced 2,4-DCP removal 
      via radical/nonradical oxidation pathways and via its adsorption to 2,4-DCP. 
      SO(4) -, HO  and O(2)(*-) were the dominate radical species involved in 2,4-DCP 
      destruction. Meanwhile, the possible pathways of 2,4-DCP degradation were 
      proposed based on GC-MS. Finally, recycling tests proved catalysts exhibited 
      recyclable stability. Aiming to resource utilization, Fe@C/Cu@C with satisfactory 
      catalysis and stability, is promising catalyst for contaminated water treatment.
CI  - Copyright (c) 2023 Elsevier Inc. All rights reserved.
FAU - Zhou, Shuang
AU  - Zhou S
AD  - School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy 
      of Ministry of Education, Central South University, Changsha, 410083, China; 
      State Environmental Protection Key Laboratory of Mineral Metallurgical Resources 
      Utilization and Pollution Control, Wuhan University of Science and Technology, 
      Wuhan, 430081, China.
FAU - Hu, Yonglian
AU  - Hu Y
AD  - School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy 
      of Ministry of Education, Central South University, Changsha, 410083, China.
FAU - Yang, Minglei
AU  - Yang M
AD  - School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy 
      of Ministry of Education, Central South University, Changsha, 410083, China.
FAU - Liu, Yun
AU  - Liu Y
AD  - School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy 
      of Ministry of Education, Central South University, Changsha, 410083, China.
FAU - Li, Qingke
AU  - Li Q
AD  - School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy 
      of Ministry of Education, Central South University, Changsha, 410083, China.
FAU - Wang, Yanhong
AU  - Wang Y
AD  - School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy 
      of Ministry of Education, Central South University, Changsha, 410083, China.
FAU - Gu, Guohua
AU  - Gu G
AD  - School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy 
      of Ministry of Education, Central South University, Changsha, 410083, China. 
      Electronic address: guguohua@csu.edu.cn.
FAU - Gan, Min
AU  - Gan M
AD  - School of Minerals Processing and Bioengineering, Key Laboratory of Biometallurgy 
      of Ministry of Education, Central South University, Changsha, 410083, China. 
      Electronic address: ganmin0803@sina.com.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20230310
PL  - Netherlands
TA  - Environ Res
JT  - Environmental research
JID - 0147621
RN  - R669TG1950 (2,4-dichlorophenol)
RN  - 0 (Chlorophenols)
RN  - 0 (Phenols)
RN  - 0 (Metals)
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - Ecosystem
MH  - *Chlorophenols
MH  - Phenols
MH  - Oxidation-Reduction
MH  - Metals
MH  - *Water Pollutants, Chemical/analysis
OTO - NOTNLM
OT  - Fe@C/Cu@C
OT  - Hydroxyl radical
OT  - Persulfate
OT  - Redox cycling
OT  - Sulfate radical
OT  - Superoxide radical
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- 2023/03/13 06:00
MHDA- 2023/04/17 06:41
CRDT- 2023/03/12 20:28
PHST- 2022/08/17 00:00 [received]
PHST- 2023/02/28 00:00 [revised]
PHST- 2023/03/04 00:00 [accepted]
PHST- 2023/04/17 06:41 [medline]
PHST- 2023/03/13 06:00 [pubmed]
PHST- 2023/03/12 20:28 [entrez]
AID - S0013-9351(23)00431-0 [pii]
AID - 10.1016/j.envres.2023.115639 [doi]
PST - ppublish
SO  - Environ Res. 2023 Jun 1;226:115639. doi: 10.1016/j.envres.2023.115639. Epub 2023 
      Mar 10.