Significance of non-DLVO interactions on the co-transport of levofloxacin and titanium dioxide nanoparticles in porous media
文献类型：期刊论文
| 作者 | Cui, Yiqun4; Wu, Ming4; Lu, Guoping4; Cheng, Zhou3; Chen, Meng2 ; Hao, Yanru4; Mo, Cehui4; Li, Qusheng5; Wu, Jianfeng1; Wu, Jichun1
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| 刊名 | ENVIRONMENTAL POLLUTION
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| 出版日期 | 2024-06-15 |
| 卷号 | 351页码:10 |
| 关键词 | Nanomaterials Antibiotics Molecular dynamics simulation Co-transport Non-XDLVO interaction |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2024.124079 |
| 英文摘要 | With the application of engineered nanomaterials and antibiotics in the fields of medicine, aerospace, new energy and agriculture, the associated contamination is detected widely in soil -groundwater systems. It is of great scientific and practical significance to deeply explore the environmental interface process between nanoparticles and antibiotics for the scientific assessment of environmental fate and ecological environmental risks, as well as the development of new composite pollution control technologies. In this study, the co -transport behaviors of positively charged titanium dioxide nanoparticles (TiO 2 -NPs) and negatively charged levofloxacin (LEV) in quartz sand (QS) are investigated in this study. The results show that TiO 2 -NPs hardly flow out when transported alone in the column because of its positive charge, which creates a strong attraction with the negatively charged quartz sand on the surface. When TiO 2 -NPs co -migrate with LEV in porous media, the presence of LEV promotes the transport of TiO 2 -NPs, while the presence of TiO 2 -NPs inhibits LEV transport. Non-XDLVO interactions based on molecular dynamics (MD) simulations can help explain the observed promotion and inhibition phenomena as well as the correlation between TiO 2 -NPs and LEV. The results indicate that TiO 2 -LEV complexes or aggregates can be formed during the co -transportation process of TiO 2 -NPs and LEV in porous media. As flow velocity increases from 0.204 cm min - 1 to 1.630 cm min - 1 , both the transport capacities of TiO 2 -NPs and LEV are enhanced significantly. Under the condition of high citric acid (CA) concentration (15 mmol L - 1 ), the transport capacity of TiO 2 -NPs is slightly inhibited, while the transport capacity of LEV is enhanced. This study provides new insights into the transport of nanometallic oxides and antibiotics in porous media, which suggests that non-XDLVO interactions should be considered together when assessing the environmental risks and fate of nanometallic oxides and antibiotics in soil -groundwater systems. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001237371000001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78528]  |
| 专题 | 中国科学院广州地球化学研究所 |
| 通讯作者 | Wu, Ming |
| 作者单位 | 1.Nanjing Univ, Sch Earth Sci & Engn, Dept Hydrosci, Key Lab Surficial Geochem,Minist Educ, Nanjing 210023, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 3.Guangdong Prov Acad Environm Sci, Guangzhou 510045, Peoples R China 4.Jinan Univ, Coll Life Sci & Technol, Guangdong Prov Res Ctr Environm Pollut Control & R, Guangzhou 510632, Peoples R China 5.Jinan Univ, Sch Environm, Guangdong Key Lab Environm Pollut & Hlth, Guangzhou 510632, Peoples R China 6.Univ Jinan, Sch Water Conservancy & Environm, Jinan 250022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Yiqun,Wu, Ming,Lu, Guoping,et al. Significance of non-DLVO interactions on the co-transport of levofloxacin and titanium dioxide nanoparticles in porous media[J]. ENVIRONMENTAL POLLUTION,2024,351:10. |
| APA | Cui, Yiqun.,Wu, Ming.,Lu, Guoping.,Cheng, Zhou.,Chen, Meng.,...&Hu, Bill X..(2024).Significance of non-DLVO interactions on the co-transport of levofloxacin and titanium dioxide nanoparticles in porous media.ENVIRONMENTAL POLLUTION,351,10. |
| MLA | Cui, Yiqun,et al."Significance of non-DLVO interactions on the co-transport of levofloxacin and titanium dioxide nanoparticles in porous media".ENVIRONMENTAL POLLUTION 351(2024):10. |
入库方式： OAI收割
来源：广州地球化学研究所
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