Catalytic ozonation of antibiotics by using Mg(OH)(2) nanosheet with dot-sheet hierarchical structure as novel nanoconfined catalyst
文献类型：期刊论文
| 作者 | Wu, Jun3; Sun, Qi2; Lu, Jian1,2,4
|
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 302页码:9 |
| 关键词 | Hierarchical-structurenano-Mg(OH)(2) Catalytic ozonation mechanism Nano-confinement effect Antibiotics Removal mechanism |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2022.134835 |
| 通讯作者 | Lu, Jian(jlu@yic.ac.cn) |
| 英文摘要 | Antibiotic pollution has caused important concern for international and national sustainability. Catalytic ozonation is a quick and efficient technique to remove contaminants in aquatic environment. This study firstly developed a nanosheet-growth technique for synthesizing Li-doped Mg(OH)(2) with dot-sheet hierarchical structure as catalyst to ozonize antibiotics. Metronidazole could be totally removed through ozonation catalyzed by Li-doped Mg(OH)(2) in 10 min. Approximately 97% of metronidazole was eliminated in 10 min even the catalyst was used for 4 times. Reaction rate constant of Li-doped Mg(OH)(2) treatment was about 3.45 times that of nano-Mg(OH)(2) treatment, illustrating that the dot-sheet hierarchical structure of Li-doped Mg(OH)(2) exhibited nano-confinement effect on the catalytic ozonation. Approximately 70.4% of metronidazole was mineralized by cat-alytic ozonation using Li-doped Mg(OH)(2). Temperature of 25 ? was more suitable for catalytic ozonation of metronidazole by Li-doped Mg(OH)(2). Ions generally inhibited the catalytic ozonation of metronidazole while only 0.005 mol L-1 of Cl- slightly enhanced the ozonation rate, illustrating complicated mechanisms existed for ozonation of metronidazole catalyzed by Li-doped Mg(OH)(2). The possible mechanisms of the ozonation of metronidazole using Li-doped Mg(OH)(2) included direct ozonation and ozonation catalyzed by radical & BULL;O-2(-), reactive oxygen species O-1(2) and intermediate (H2O2). The synthesized Mg(OH)(2) nanosheet with dot-sheet hierarchical structure is a novel nanoconfined material with excellent reusability and catalytic performance. |
| WOS关键词 | CATALYTIC OZONATION ; PHOTOCATALYTIC OZONATION ; WASTE-WATER ; THIN-FILMS ; DEGRADATION ; NANOCOMPOSITE ; MGO ; MAGNESIUM ; REMOVAL ; LITHIUM |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000802786800007 |
| 资助机构 | National Natural Science Foundation of China ; Taishan Scholars Program of Shandong Province ; Two-Hundred Talents Plan of Yantai |
| 源URL | [http://ir.yic.ac.cn/handle/133337/31149]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 烟台海岸带研究所_近岸生态与环境实验室 |
| 通讯作者 | Lu, Jian |
| 作者单位 | 1.Chinese Acad Sci, Ctr Ocean Megasci, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China 3.Harbin Engn Univ, Yantai Res Inst, Yantai 264006, Peoples R China 4.Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 |
Wu, Jun,Sun, Qi,Lu, Jian. Catalytic ozonation of antibiotics by using Mg(OH)(2) nanosheet with dot-sheet hierarchical structure as novel nanoconfined catalyst [J]. CHEMOSPHERE,2022,302:9. |
| APA |
Wu, Jun,Sun, Qi,&Lu, Jian.(2022). Catalytic ozonation of antibiotics by using Mg(OH)(2) nanosheet with dot-sheet hierarchical structure as novel nanoconfined catalyst .CHEMOSPHERE,302,9. |
| MLA |
Wu, Jun,et al." Catalytic ozonation of antibiotics by using Mg(OH)(2) nanosheet with dot-sheet hierarchical structure as novel nanoconfined catalyst ".CHEMOSPHERE 302(2022):9. |
入库方式： OAI收割
来源：烟台海岸带研究所
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