PMID- 32200243 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20200702 LR - 20200702 IS - 1873-3336 (Electronic) IS - 0304-3894 (Linking) VI - 394 DP - 2020 Jul 15 TI - Facile synthesis of superparamagnetic beta-CD-MnFe(2)O(4) as a peroxymonosulfate activator for efficient removal of 2,4- dichlorophenol: structure, performance, and mechanism. PG - 122528 LID - S0304-3894(20)30517-3 [pii] LID - 10.1016/j.jhazmat.2020.122528 [doi] AB - In this study, superparamagnetic beta-CD-MnFe(2)O(4) with a large surface area was synthesized via a facile co-precipitation method, with beta-cyclodextrin (beta-CD) acting as a coating agent. The as-prepared beta-CD-MnFe(2)O(4) exhibited better catalytic performance than bare MnFe(2)O(4) in terms of activating peroxymonosulfate (PMS) to degrade 2,4-dichlorophenol (2,4-DCP) over a broad pH range of 5-11. Electron spin resonance spectroscopy (ESR) and free radical quenching experiments indicate that various active species (SO(4)(-)/OH/O(2)(-)/(1)O(2)) are generated in the beta-CD-MnFe(2)O(4)/PMS system and that pollutants trapped in the cyclodextrin cavity are quickly degraded. Various reaction parameters of the beta-CD-MnFe(2)O(4)/PMS system and the stability of beta-CD-MnFe(2)O(4) were also investigated. The results indicate that beta-CD-MnFe(2)O(4) is promising for use in water purification owing to its excellent magnetic separation and recovery properties and good resistance to humic acid (HA). CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - Zhou, Xiaojun AU - Zhou X AD - Key Laboratory for Colloid & Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, Jinan 250100, PR China. FAU - Kong, Lingshuai AU - Kong L AD - Key Laboratory for Colloid & Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, Jinan 250100, PR China. FAU - Jing, Zongyu AU - Jing Z AD - Key Laboratory for Colloid & Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, Jinan 250100, PR China. FAU - Wang, Shuqing AU - Wang S AD - Key Laboratory for Colloid & Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, Jinan 250100, PR China. FAU - Lai, Yongchao AU - Lai Y AD - Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, PR China. Electronic address: suncedar@126.com. FAU - Xie, Meng AU - Xie M AD - Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Centre, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China. FAU - Ma, Long AU - Ma L AD - The Testing Center of Shandong Bureau of China Metallurgical Geology Bureau, Jinan, 250100, PR China. FAU - Feng, Zhenyu AU - Feng Z AD - Key Laboratory for Colloid & Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, Jinan 250100, PR China. FAU - Zhan, Jinhua AU - Zhan J AD - Key Laboratory for Colloid & Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, Jinan 250100, PR China. Electronic address: jhzhan@sdu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200312 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 SB - IM OTO - NOTNLM OT - Cyclodextrin OT - Humic acid OT - Magnetic separation OT - MnFe(2)O(4) OT - Peroxymonosulfate 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- 2020/03/23 06:00 MHDA- 2020/03/23 06:01 CRDT- 2020/03/23 06:00 PHST- 2019/12/18 00:00 [received] PHST- 2020/03/08 00:00 [revised] PHST- 2020/03/11 00:00 [accepted] PHST- 2020/03/23 06:00 [pubmed] PHST- 2020/03/23 06:01 [medline] PHST- 2020/03/23 06:00 [entrez] AID - S0304-3894(20)30517-3 [pii] AID - 10.1016/j.jhazmat.2020.122528 [doi] PST - ppublish SO - J Hazard Mater. 2020 Jul 15;394:122528. doi: 10.1016/j.jhazmat.2020.122528. Epub 2020 Mar 12.