| Enhanced ozonation of antibiotics using magnetic Mg(OH)(2) nanoparticles made through magnesium recovery from discarded bischofite | |
Lu, J ; Sun, Q; Wu, J; Zhu, GC
| |
| 发表期刊 | CHEMOSPHERE
 |
| ISSN | 0045-6535 |
| 2020-01 | |
| 卷号 | 238页码:UNSP 124694 |
| 关键词 | Fe3O4@Mg(OH)(2) magnetic nanoparticles Water treatment Antibiotics Catalytic ozonation Core-shell structure Antibacterial activity |
| 研究领域 | Environmental Sciences |
| DOI | 10.1016/j.chemosphere.2019.124694 |
| 产权排序 | [Lu, Jian; Sun, Qi] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China; [Wu, Jun] YICCAS, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China; [Wu, Jun] Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Shandong, Peoples R China; [Zhu, Guangcan] Southeast Univ, Sch Energy & Environm, Nanjing 210096, Jiangsu, Peoples R China |
| 通讯作者 | Lu, Jian(jlu@yic.ac.cn) |
| 作者部门 | 海岸带环境过程实验室 |
| 英文摘要 | Techniques for reutilization of the discarded bischofite are limited while efficient recovery of the Mg(OH)(2) nanoparticles from water during the synthesis and reuse processes is a challenge. In this study, the Fe3O4@Mg(OH)(2) core-shell magnetic nanoparticles were firstly prepared from discarded bischofite and used as catalyst for improving the ozonation of metronidazole (MNZ). The removal rate constant of MNZ increased by 694.7% using Fe3O4@Mg(OH)(2). Compared with the Mg(OH)(2) control, the MNZ removal rate constant of Fe3O4@Mg(OH)(2) treatment was almost tripled. The persistent high catalytic activity of the Fe3O4@Mg(OH)(2) catalyst was observed since the MNZ removal rate constant decreased by just 13.2% in the third reuse run. The Fe3O4@Mg(OH)(2) primarily enhanced ozone decomposition through producing hydroxyl radicals. The MNZ removal rate constant increased from 0.075 min(-1) to 0.643 min(-1) as catalyst dose increased from 0 to 0.6 g L-1 while it decreased by 96.0% when its initial concentration increased from 10 to 200 mg L-1. The maximum removal rate constant was observed at 25 degrees C when temperature increased from 15 degrees C to 35 degrees C. The Cl-, HCO3-, SO42-, Ca2+, Mg2+ ions could jeopardize MNZ degradation. The antibacterial activity of MNZ was eliminated after catalytic ozonation while the mineralization efficiency was almost doubled. The nitro group reduction and the cleavage of hydroxyethyl bond were two main transformation pathways of MNZ. These findings suggest that Fe3O4@Mg(OH)(2) nanoparticle made from discarded bischofite is the promising catalyst for the ozonation of antibiotics in the terms of water purification practice and reutilization of the bischofite. (C) 2019 Elsevier Ltd. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41877131] ; Taishan Scholar Program of Shandong Province [tsqn201812116] ; One Hundred Talents Program of Chinese Academy of SciencesChinese Academy of Sciences [Y629041021] ; Two-Hundred Talents Plan of Yantai [Y739011021] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | PETROCHEMICAL WASTE-WATER ; CATALYTIC OZONATION ; NITROIMIDAZOLE ANTIBIOTICS ; DRINKING-WATER ; DEGRADATION ; REMOVAL ; METRONIDAZOLE ; ACID ; NANOTUBES ; HYDROXIDE |
| 研究领域[WOS] | Environmental Sciences |
| WOS记录号 | WOS:000497885800137 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/24784 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室 中国科学院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China; 2.YICCAS, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China; 3.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Shandong, Peoples R China; 4.Southeast Univ, Sch Energy & Environm, Nanjing 210096, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, J,Sun, Q,Wu, J,et al. Enhanced ozonation of antibiotics using magnetic Mg(OH)(2) nanoparticles made through magnesium recovery from discarded bischofite[J]. CHEMOSPHERE,2020,238:UNSP 124694. |
| APA | Lu, J,Sun, Q,Wu, J,&Zhu, GC.(2020).Enhanced ozonation of antibiotics using magnetic Mg(OH)(2) nanoparticles made through magnesium recovery from discarded bischofite.CHEMOSPHERE,238,UNSP 124694. |
| MLA | Lu, J,et al."Enhanced ozonation of antibiotics using magnetic Mg(OH)(2) nanoparticles made through magnesium recovery from discarded bischofite".CHEMOSPHERE 238(2020):UNSP 124694. |
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