Selective adsorption of fluoride from drinking water using NiAl-layered metal oxide film electrode
文献类型：期刊论文
| 作者 | Bai, Zhaoyu; Hu, Chengzhi; Liu, Huijuan; Qu, Jiuhui
|
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2019-03-15 |
| 卷号 | 539页码:146-151 |
| ISSN号 | 0021-9797 |
| 关键词 | Electro-adsorption Capacitive deionization Layered metal oxide Defluorination |
| 英文摘要 | Selective adsorption and regeneration of adsorbents are great challenges for fluoride removal in drinking water. In this study, a NiAl-layered metal oxide (NiAl-LMO) electrode was successfully prepared and used as an electro-adsorption electrode. With its structural memory effect for anions and high specific capacitance of 575 F.g(-1), the NiAl-LMO electrode exhibits capacitive deionization performance. The maximum adsorption capacity of F- by the electrode reached 49.28 mg/g, which was 4 times that of Cl- and 2 times that of SO42-, respectively. The good selectivity for F- electrosorption was ascribed to the high electronegativity of F- and the complexation between F- and hydroxyl aluminum groups. The electrode material has good stability and can be regenerated easily by applying a reverse voltage. After 10 cycles, the F- adsorption rate by the NiAl-LMO electrode was 94. 4% of the initial adsorption rate. The applied voltage enhanced the selectivity of F- adsorption by the NiAI-LMO electrode, and this electrosorption process was mainly dominated by electrical double layer adsorption. Under the conditions of 1.0 V and pH 7, the electrode showed a maximum adsorption efficiency of 73.5%. (C) 2018 Elsevier Inc. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/43115]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 3.Hebei Univ Technol, Tianjin 300401, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Zhaoyu,Hu, Chengzhi,Liu, Huijuan,et al. Selective adsorption of fluoride from drinking water using NiAl-layered metal oxide film electrode[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2019,539:146-151. |
| APA | Bai, Zhaoyu,Hu, Chengzhi,Liu, Huijuan,&Qu, Jiuhui.(2019).Selective adsorption of fluoride from drinking water using NiAl-layered metal oxide film electrode.JOURNAL OF COLLOID AND INTERFACE SCIENCE,539,146-151. |
| MLA | Bai, Zhaoyu,et al."Selective adsorption of fluoride from drinking water using NiAl-layered metal oxide film electrode".JOURNAL OF COLLOID AND INTERFACE SCIENCE 539(2019):146-151. |
入库方式： OAI收割
来源：生态环境研究中心
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