Recovery and separation of uranium in a microbial fuel cell using a titanium dioxide nanotube array cathode
文献类型：期刊论文
| 作者 | Liu, Wenbin; Lin, Leiming; Meng, Ying; Zhao, Ziwang; Wang, Yahua; Luan, Fubo |
| 刊名 | ENVIRONMENTAL SCIENCE-NANO
 |
| 出版日期 | 2021-08-01 |
| 卷号 | 8期号:8页码:2214-2222 |
| ISSN号 | 2051-8153 |
| 英文摘要 | Uranium is a common radionuclide contaminant in groundwater. Recovery of uranium from uranium-containing water can achieve the dual purposes of uranium remediation and uranium resource utilization. However, very few studies have successfully achieved this task. In this study, we developed a microbial fuel cell (MFC) system with a titanium dioxide nanotube array (TNTA) cathode, which could efficiently remove (over 95%) and recover (over 97%) uranium from uranium-containing water. Results demonstrated that the removal of U(vi) in the MFC was through an adsorption-reduction-deposition mechanism. U(vi) was adsorbed by the TNTA cathode, and the adsorbed U(vi) was further electroreduced to U(iv)O-2 and deposited on the surface of the TNTA cathode. The reduction of adsorbed U(vi) initiated re-equilibration of the desorption reaction of adsorbed U(vi) and induced re-adsorption of U(vi). The re-adsorbed U(vi) could be further electroreduced to U(iv)O-2, which resulted in the continuous removal of U(vi). Finally, 2.95 mu mol U(vi) was reduced and deposited as U(iv)O-2 on the surface of the TNTAs (1476.22 mu mol m(-2)) without observing capacity saturation. Moreover, the deposited U(iv)O-2 can be easily separated from the TNTA cathode with dilute nitric acid, and the TNTA cathode can be used repeatedly with stable performance. |
| WOS研究方向 | Chemistry, Multidisciplinary ; Environmental Sciences ; Nanoscience & Nanotechnology |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46254]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Wenbin,Lin, Leiming,Meng, Ying,et al. Recovery and separation of uranium in a microbial fuel cell using a titanium dioxide nanotube array cathode[J]. ENVIRONMENTAL SCIENCE-NANO,2021,8(8):2214-2222. |
| APA | Liu, Wenbin,Lin, Leiming,Meng, Ying,Zhao, Ziwang,Wang, Yahua,&Luan, Fubo.(2021).Recovery and separation of uranium in a microbial fuel cell using a titanium dioxide nanotube array cathode.ENVIRONMENTAL SCIENCE-NANO,8(8),2214-2222. |
| MLA | Liu, Wenbin,et al."Recovery and separation of uranium in a microbial fuel cell using a titanium dioxide nanotube array cathode".ENVIRONMENTAL SCIENCE-NANO 8.8(2021):2214-2222. |
入库方式： OAI收割
来源：生态环境研究中心
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