A high-capacity amidoxime-functionalized magnetic composite for selective uranium capture in Salt Lake water
文献类型：期刊论文
| 作者 | Liu, Nijuan1; Li, Cuicui1; Bai, Jing2 ; Liang, Hao1; Gao, Qinqin1; Wang, Nana1; Guo, Ruibin1; Qin, Zhi2; Mo, Zunli1
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| 刊名 | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
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| 出版日期 | 2021-12-01 |
| 卷号 | 9期号:6页码:9 |
| 关键词 | Uranium adsorption Amidoxime-functionalized Magnetic composite High selectivity Salt Lake water |
| DOI | 10.1016/j.jece.2021.106688 |
| 通讯作者 | Liu, Nijuan(liunj15@nwnu.edu.cn) ; Qin, Zhi(qinzhi@impcas.ac.cn) ; Mo, Zunli(mozlnwnu@126.com) |
| 英文摘要 | In order to promote the sustainable development and utilization of nuclear energy, it is essential to develop convenient and efficient methods for uranium enrichment. In this work, an amidoxime functionalized magnetic composite (CS-Ppy-Fe3O4-AO) was synthesized by a simple two-step process and applied for selective adsorption of uranium from natural Salt Lake water. The effect of CS-Ppy-Fe3O4-AO on the uranium adsorption capacity under different conditions such as pH, contact time, temperature, ionic strength and interfering ions were firstly investigated by batch experiments. The results indicated that the maximum adsorption capacity was 937.14 mg/g at pH=6 and T = 298 K, which was higher than that of most currently reported magnetic adsorbents. Moreover, the adsorbent could be easily regenerated and still maintained high adsorption capacity after five adsorption-desorption cycles. Meanwhile, the adsorption mechanism of CS-Ppy-Fe3O4-AO on uranium was investigated by FT-IR and XPS, and they showed that nitrogen-oxygen functional groups (e.g. amidoxime and amino groups) played a predominant role on the adsorption of uranium. What' s more, the CS-Ppy-Fe3O4-AO showed excellent selectivity and adsorption capacity (3.75 mg/g) on uranium in Salt Lake water, which implied that the CS-Ppy-Fe3O4-AO could be potentially used as a desired adsorbent on uranium enrichment. |
| WOS关键词 | GRAPHENE OXIDE ; CARBON NANOTUBES ; AQUEOUS-SOLUTION ; VI ADSORPTION ; EFFICIENT ; REMOVAL ; SORPTION ; U(VI) ; POLYPYRROLE ; ADSORBENT |
| 资助项目 | Natural Science Foundation of China[21861034] ; Natural Science Foundation of China[51262027] ; Natural Science Foundation of Gansu Province, China[18JR3RA094] ; Key Research and Development Project of Gansu Province, China[20YF3GA022] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000719238000002 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Natural Science Foundation of China ; Natural Science Foundation of Gansu Province, China ; Key Research and Development Project of Gansu Province, China |
| 源URL | [http://119.78.100.186/handle/113462/139975]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Liu, Nijuan; Qin, Zhi; Mo, Zunli |
| 作者单位 | 1.Northwest Normal Univ, Coll Chem & Chem Engn, Res Ctr Gansu Mil & Civilian Integrat Adv Struct, Key Lab Ecofunct Polymer Mat,Minist Educ, Lanzhou 730070, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Nijuan,Li, Cuicui,Bai, Jing,et al. A high-capacity amidoxime-functionalized magnetic composite for selective uranium capture in Salt Lake water[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2021,9(6):9. |
| APA | Liu, Nijuan.,Li, Cuicui.,Bai, Jing.,Liang, Hao.,Gao, Qinqin.,...&Mo, Zunli.(2021).A high-capacity amidoxime-functionalized magnetic composite for selective uranium capture in Salt Lake water.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,9(6),9. |
| MLA | Liu, Nijuan,et al."A high-capacity amidoxime-functionalized magnetic composite for selective uranium capture in Salt Lake water".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 9.6(2021):9. |
入库方式： OAI收割
来源：近代物理研究所
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