Towards understanding the correlation between UO_2~(2+) extraction and substitute groups in 2,9-diamide-1,10-phenanthroline
文献类型：期刊论文
| 作者 | Zhang, XR ; Yuan, LY; Chai, ZF; Shi, WQ; Zhang XR(张昕蕊); Yuan LY(袁立永); Chai ZF(柴之芳); Shi WQ(石伟群)
|
| 刊名 | SCIENCE CHINA-CHEMISTRY
 |
| 出版日期 | 2018 |
| 卷号 | 61期号:10页码:1285-1292 |
| 关键词 | 2,9-diamide-1,10-phenanthroline UO22+ extraction UV-Vis titration EXAFS |
| ISSN号 | 1674-7291 |
| DOI | 10.1007/s11426-018-9227-1 |
| 文献子类 | Article |
| 英文摘要 | 2,9-Diamide-1,10-phenanthroline (DAPhen) ligands represent a new family of tetradentate extractants given their strong affinity to actinides and the CHON principle. Among this family, N,N'-diethyl-N,N'-ditolyl-2,9-diamide-1,10-phenanthroline (Et-Tol-DAPhen), initially reported by us, exhibits excellent selectivity towards actinides (U, Th, Am, Pu) over lanthanides and thus can be potentially applied in the group actinide extraction (GANEX) process for the group separation of actinides. In this article, by tailoring the lengths of alkyl chains, we synthesized other four DAPhen ligands with different substitute groups in the diamide moieties, and characterized the relationship between properties and substitute groups of DAPhen ligand. The extraction results show that three of the ligands exhibit high performance in UO2 (2+) extraction from an acidic solution and the extracted UO2 (2+) can be easily stripped by only using ultrapure water. Spectrophotometry titration confirms that UO2 (2+) combined with all the four ligands in 1:1 mode. The extended X-ray absorption finestructure (EXAFS) study shows that six donor atoms comprise the first equatorial shell of the UO2 (2+) ions bonded by the DAPhen ligands, among which two nitrogen and two oxygen atoms are from the DAPhen ligand, while other two oxygen atoms are from one nitrate ions. This article promises to provide basic data for assessing the feasibility of this kind of DAPhen ligands applied in actinides separation from nuclear wastes. |
| 电子版国际标准刊号 | 1869-1870 |
| WOS关键词 | AM(III)/EU(III) SELECTIVITY ; THEORETICAL PREDICTION ; SOLVENT SYSTEM ; NUCLEAR-FUEL ; ACTINIDES ; URANYL ; SEPARATION ; COORDINATION ; URANIUM(VI) ; COMPLEXES |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| CSCD记录号 | CSCD:6384261 |
| WOS记录号 | WOS:000446627600012 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286385]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, XR,Yuan, LY,Chai, ZF,et al. Towards understanding the correlation between UO_2~(2+) extraction and substitute groups in 2,9-diamide-1,10-phenanthroline[J]. SCIENCE CHINA-CHEMISTRY,2018,61(10):1285-1292. |
| APA | Zhang, XR.,Yuan, LY.,Chai, ZF.,Shi, WQ.,张昕蕊.,...&石伟群.(2018).Towards understanding the correlation between UO_2~(2+) extraction and substitute groups in 2,9-diamide-1,10-phenanthroline.SCIENCE CHINA-CHEMISTRY,61(10),1285-1292. |
| MLA | Zhang, XR,et al."Towards understanding the correlation between UO_2~(2+) extraction and substitute groups in 2,9-diamide-1,10-phenanthroline".SCIENCE CHINA-CHEMISTRY 61.10(2018):1285-1292. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。