PMID- 32736111
OWN - NLM
STAT- MEDLINE
DCOM- 20201007
LR  - 20201007
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 745
DP  - 2020 Nov 25
TI  - Egg shell biochar-based green catalysts for the removal of organic pollutants by 
      activating persulfate.
PG  - 141095
LID - S0048-9697(20)34624-6 [pii]
LID - 10.1016/j.scitotenv.2020.141095 [doi]
AB  - The sulfate radical based advanced oxidation processes (SR-AOPs) has shown great 
      potential in environmental remediation. In recent years, metal-free catalysts 
      have attracted great attention due to their properties of low environmental risk 
      and high catalytic activity. Among them, biochar-based catalysts are widely 
      studied for their low cost by using substance existing in nature as raw material. 
      In this work, egg shell derived biochar (ES-biochar), which was prepared by a 
      simple one-pot pyrolysis method, has been proven to be an effective and 
      innovative catalyst to activate persulfate for aqueous organic pollutant 
      degradation. In addition, ES-biochar showed superior performance in the 
      degradation reaction with removal efficiency of more than 90% in 120 min for 
      2,4-dichlorophenol (2,4-DCP), which was selected as a representative organic 
      pollutant. Further quenching tests and electron spin resonance spectroscopy 
      demonstrated that both free-radicals and non-radicals pathways were involved in 
      this process, and OH dominated in free-radicals process. More importantly, this 
      work not only proposed a novel biochar material as an efficient persulfate 
      activator, but also provided a value-added reuse approach for egg shell in line 
      with the concept of resource recycling and environmental sustainability.
CI  - Copyright (c) 2020 Elsevier B.V. All rights reserved.
FAU - Liu, Haoyu
AU  - Liu H
AD  - College of Environmental Science and Engineering, Hunan University, Changsha 
      410082, China; Key Laboratory of Environmental Biology and Pollution Control 
      (Hunan University), Ministry of Education, Changsha 410082, Hunan, China.
FAU - Liu, Yani
AU  - Liu Y
AD  - College of Environmental Science and Engineering, Hunan University, Changsha 
      410082, China; Key Laboratory of Environmental Biology and Pollution Control 
      (Hunan University), Ministry of Education, Changsha 410082, Hunan, China.
FAU - Tang, Lin
AU  - Tang L
AD  - College of Environmental Science and Engineering, Hunan University, Changsha 
      410082, China; Key Laboratory of Environmental Biology and Pollution Control 
      (Hunan University), Ministry of Education, Changsha 410082, Hunan, China. 
      Electronic address: tanglin@hnu.edu.cn.
FAU - Wang, Jiajia
AU  - Wang J
AD  - College of Environmental Science and Engineering, Hunan University, Changsha 
      410082, China; Key Laboratory of Environmental Biology and Pollution Control 
      (Hunan University), Ministry of Education, Changsha 410082, Hunan, China.
FAU - Yu, Jiangfang
AU  - Yu J
AD  - College of Environmental Science and Engineering, Hunan University, Changsha 
      410082, China; Key Laboratory of Environmental Biology and Pollution Control 
      (Hunan University), Ministry of Education, Changsha 410082, Hunan, China.
FAU - Zhang, Hao
AU  - Zhang H
AD  - College of Environmental Science and Engineering, Hunan University, Changsha 
      410082, China; Key Laboratory of Environmental Biology and Pollution Control 
      (Hunan University), Ministry of Education, Changsha 410082, Hunan, China.
FAU - Yu, Mingliang
AU  - Yu M
AD  - College of Environmental Science and Engineering, Hunan University, Changsha 
      410082, China; Key Laboratory of Environmental Biology and Pollution Control 
      (Hunan University), Ministry of Education, Changsha 410082, Hunan, China.
FAU - Zou, Jiajing
AU  - Zou J
AD  - College of Environmental Science and Engineering, Hunan University, Changsha 
      410082, China; Key Laboratory of Environmental Biology and Pollution Control 
      (Hunan University), Ministry of Education, Changsha 410082, Hunan, China.
FAU - Xie, Qingqing
AU  - Xie Q
AD  - College of Environmental Science and Engineering, Hunan University, Changsha 
      410082, China; Key Laboratory of Environmental Biology and Pollution Control 
      (Hunan University), Ministry of Education, Changsha 410082, Hunan, China.
LA  - eng
PT  - Journal Article
DEP - 20200721
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Environmental Pollutants)
RN  - 0 (biochar)
RN  - 16291-96-6 (Charcoal)
SB  - IM
MH  - Animals
MH  - Catalysis
MH  - Charcoal
MH  - Egg Shell
MH  - *Environmental Pollutants
OTO - NOTNLM
OT  - 2,4-Dichlorophenol
OT  - Advanced oxidation processes
OT  - Egg shell
OT  - Persulfate
OT  - Resource recycling
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- 2020/08/01 06:00
MHDA- 2020/10/08 06:00
CRDT- 2020/08/01 06:00
PHST- 2020/01/05 00:00 [received]
PHST- 2020/07/17 00:00 [revised]
PHST- 2020/07/18 00:00 [accepted]
PHST- 2020/08/01 06:00 [pubmed]
PHST- 2020/10/08 06:00 [medline]
PHST- 2020/08/01 06:00 [entrez]
AID - S0048-9697(20)34624-6 [pii]
AID - 10.1016/j.scitotenv.2020.141095 [doi]
PST - ppublish
SO  - Sci Total Environ. 2020 Nov 25;745:141095. doi: 10.1016/j.scitotenv.2020.141095. 
      Epub 2020 Jul 21.