PMID- 30609486 OWN - NLM STAT- MEDLINE DCOM- 20190213 LR - 20190215 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 218 DP - 2019 Mar TI - Activation of peroxymonosulfate by magnetic carbon supported Prussian blue nanocomposite for the degradation of organic contaminants with singlet oxygen and superoxide radicals. PG - 1071-1081 LID - S0045-6535(18)32304-X [pii] LID - 10.1016/j.chemosphere.2018.11.197 [doi] AB - In order to develop efficient and green catalyst for organic pollutants removal, magnetic carbon supported Prussian blue nanocomposite Fe(3)O(4)@C/PB was prepared for the first time. The performance of Fe(3)O(4)@C/PB in activating peroxymonosulfate (PMS) for the degradation of 2,4-dichlorophenol (2,4-DCP) was investigated. 2,4-DCP could be effectively degraded under the "Fe(3)O(4)@C/PB + PMS" system within a broad pH range of 2-9. Without pH adjustment (pH 3), 2,4-DCP (20 mg/L) was completely degraded in 50 min along with a 70% removal of TOC; while the required time for complete degradation of 2,4-DCP was shortened to 40 min under initial solution pH at 7. Fe(3)O(4)@C/PB could also activate PMS for the degradation of phenol, Acid Orange II, Reactive brilliant red X-3B, Rhodamine B and Methylene blue. The degradation rates higher than 95% could be achieved for all these contaminants within the time scale of 15-60 min. The studies of radical-quenching and electron paramagnetic resonance demonstrated that singlet oxygen ((1)O(2)) and superoxide radicals (O(2)(-)), rather than sulfate (SO(4)(-)) and hydroxyl (OH) radicals, were the dominant species responsible for the oxidation of organic pollutants. The plausible mechanism of the catalytic degradation was proposed and the enhanced activity of Fe(3)O(4)@C/PB was assumed to be related to the increased electron transfer owing to the synergic effect between the magnetic carbon and the mixed-valence units in PB. Fe(3)O(4)@C/PB is promising in wastewater treatment owing to its high efficiency, excellent stability and reusability, environmental friendliness and magnetic separability. CI - Copyright (c) 2018 Elsevier Ltd. All rights reserved. FAU - Guo, Furong AU - Guo F AD - School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, China. FAU - Wang, Kangjie AU - Wang K AD - School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, China. FAU - Lu, Jiahua AU - Lu J AD - School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, China. FAU - Chen, Jichong AU - Chen J AD - School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, China. FAU - Dong, Xiongwei AU - Dong X AD - Engineering Research Centre for Cleaner Production of Textile Printing and Dyeing, Ministry of Education, Wuhan, 430200, China. FAU - Xia, Dongsheng AU - Xia D AD - Engineering Research Centre for Cleaner Production of Textile Printing and Dyeing, Ministry of Education, Wuhan, 430200, China. Electronic address: dongsheng_xia@wtu.edu.cn. FAU - Zhang, Aiqing AU - Zhang A AD - Key Laboratory of Catalysis and Materials Sciences of the State Ethnic Affairs Commission & Ministry of Education, South-Central University for Nationalities, Wuhan, 430073, China. FAU - Wang, Qiang AU - Wang Q AD - School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, China; Engineering Research Centre for Cleaner Production of Textile Printing and Dyeing, Ministry of Education, Wuhan, 430200, China; Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, China. Electronic address: wangqche@hotmail.com. LA - eng PT - Journal Article DEP - 20181129 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Peroxides) RN - 11062-77-4 (Superoxides) RN - 17778-80-2 (Singlet Oxygen) RN - 22047-43-4 (peroxymonosulfate) RN - 7440-44-0 (Carbon) SB - IM MH - Carbon/*chemistry MH - Nanocomposites/*chemistry MH - Oxidation-Reduction MH - Peroxides/*chemistry MH - Singlet Oxygen/*chemistry MH - Superoxides/*chemistry OTO - NOTNLM OT - Advanced oxidation processes OT - Magnetic carbon OT - Organic pollutants degradation OT - Peroxymonosulfate OT - Prussian blue OT - Reactive oxygen species EDAT- 2019/01/06 06:00 MHDA- 2019/02/14 06:00 CRDT- 2019/01/06 06:00 PHST- 2018/09/09 00:00 [received] PHST- 2018/11/16 00:00 [revised] PHST- 2018/11/28 00:00 [accepted] PHST- 2019/01/06 06:00 [entrez] PHST- 2019/01/06 06:00 [pubmed] PHST- 2019/02/14 06:00 [medline] AID - S0045-6535(18)32304-X [pii] AID - 10.1016/j.chemosphere.2018.11.197 [doi] PST - ppublish SO - Chemosphere. 2019 Mar;218:1071-1081. doi: 10.1016/j.chemosphere.2018.11.197. Epub 2018 Nov 29.