PMID- 37011511 OWN - NLM STAT- MEDLINE DCOM- 20230426 LR - 20230426 IS - 1090-2414 (Electronic) IS - 0147-6513 (Linking) VI - 256 DP - 2023 May TI - Sulfurized nano zero-valent iron prepared via different methods: Effect of stability and types of surface corrosion products on removal of 2,4,6-trichlorophenol. PG - 114864 LID - S0147-6513(23)00368-8 [pii] LID - 10.1016/j.ecoenv.2023.114864 [doi] AB - Sulfurization improves the stability and activity of nano zero-valent iron (nZVI). The sulfurized nZVI (S-nZVI) were prepared with ball milling, vacuum chemical vapor deposition (CVD) and liquid-phase reduction techniques and the corresponding products were the mixture of FeS(2) and nZVI (nZVI/FeS(2)), well-defined core-shell structure (FeS(x)@Fe) or seriously oxidized (S-nZVI(aq)), respectively. All these materials were applied to eliminate 2,4,6-trichlorophenol (TCP) from water. The removal of TCP was irrelevant with the structure of S-nZVI. Both nZVI/FeS(2) and FeS(x)@Fe showed remarkable performance for the degradation of TCP. S-nZVI(aq) possessed poor mineralization efficiency to TCP due to its bad crystallinity degree and severe leaching of Fe ions, which retarded the affinity of TCP. Desorption and quenching experiments suggested that TCP removal by nZVI and S-nZVI was based on surface adsorption and subsequent direct reduction by Fe(0), oxidation by in-situ produced ROS and polymerization on the surface of these materials. In the reaction process, the corrosion products of these materials transformed into crystalline Fe(3)O(4) and alpha/beta-FeOOH, which enhanced the stability of nZVI and S-nZVI materials and was conductive to the electron transferring from Fe(0) to TCP and strong affinity of TCP onto Fe or FeS(x) phases. All these were contributed to high performance of nZVI and sulfurized nZVI in removal and minerazilation of TCP in continuous recycle test. CI - Copyright (c) 2023 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Li, Li AU - Li L AD - School of Chemistry and Materials Science, Ludong University, Yantai, Shandong Province 264025, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. FAU - Jin, Huiwen AU - Jin H AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Life Science, North China University of Science and Technology, Tangshan, Hebei Province 063210, China. FAU - Luo, Na AU - Luo N AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China. FAU - Niu, Hongyun AU - Niu H AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. Electronic address: hyniu@rcees.ac.cn. FAU - Cai, Yaqi AU - Cai Y AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Institute of Environment and Health, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, Zhejiang Province 310013, China. FAU - Cao, Dong AU - Cao D AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. FAU - Zhang, Shengxiao AU - Zhang S AD - School of Chemistry and Materials Science, Ludong University, Yantai, Shandong Province 264025, China. Electronic address: beijingzsx@163.com. LA - eng PT - Journal Article DEP - 20230401 PL - Netherlands TA - Ecotoxicol Environ Saf JT - Ecotoxicology and environmental safety JID - 7805381 RN - E1UOL152H7 (Iron) RN - MHS8C5BAUZ (2,4,6-trichlorophenol) RN - 0 (Water Pollutants, Chemical) RN - 1310-14-1 (goethite) SB - IM MH - *Iron/chemistry MH - Corrosion MH - *Water Pollutants, Chemical/analysis MH - Adsorption OTO - NOTNLM OT - 2,4,6-Trichlorophenol OT - Ball milling method OT - Liquid-phase reduction OT - Sulfurized nanometer zero-valent iron OT - Vacuum CVD 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- 2023/04/04 06:00 MHDA- 2023/04/26 06:41 CRDT- 2023/04/03 18:04 PHST- 2022/12/28 00:00 [received] PHST- 2023/03/21 00:00 [revised] PHST- 2023/03/30 00:00 [accepted] PHST- 2023/04/26 06:41 [medline] PHST- 2023/04/04 06:00 [pubmed] PHST- 2023/04/03 18:04 [entrez] AID - S0147-6513(23)00368-8 [pii] AID - 10.1016/j.ecoenv.2023.114864 [doi] PST - ppublish SO - Ecotoxicol Environ Saf. 2023 May;256:114864. doi: 10.1016/j.ecoenv.2023.114864. Epub 2023 Apr 1.