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| Ultrafiltration separation of Am(VI)-polyoxometalate from lanthanides | |
| 2023-04-20 | |
| Source Publication | NATURE
 |
| ISSN | 0028-0836 |
| EISSN | 1476-4687 |
| Volume | 616Issue:7957 |
| Status | 已发表 |
| DOI | 10.1038/s41586-023-05840-z |
| Abstract | Partitioning of americium from lanthanides (Ln) present in used nuclear fuel plays a key role in the sustainable development of nuclear energy(1-3). This task is extremely challenging because thermodynamically stable Am(III) and Ln(III) ions have nearly identical ionic radii and coordination chemistry. Oxidization of Am(III) to Am(VI) produces AmO22+ ions distinct with Ln(III) ions, which has the potential to facilitate separations in principle. However, the rapid reduction of Am(VI) back to Am(III) by radiolysis products and organic reagents required for the traditional separation protocols including solvent and solid extractions hampers practical redox-based separations. Herein, we report a nanoscale polyoxometalate (POM) cluster with a vacancy site compatible with the selective coordination of hexavalent actinides (U-238, Np-237, Pu-242 and Am-243) over trivalent lanthanides in nitric acid media. To our knowledge, this cluster is the most stable Am(VI) species in aqueous media observed so far. Ultrafiltration-based separation of nanoscale Am(VI)-POM clusters from hydrated lanthanide ions by commercially available, fine-pored membranes enables the development of a once-through americium/lanthanide separation strategy that is highly efficient and rapid, does not involve any organic components and requires minimal energy input. |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China["21790372","21822606","21790374","21825601","22222606","22227809","22006106","21790370"] ; Natural Science Foundation of Jiangsu Province[BK20211546] ; Deutsche Forschungsgemeinschaft (DFG) cooperation project[DFG-AL1527/3-1] ; Beijing Natural Science Foundation[JQ20041] ; US Department of Energy, Office of Science, Basic Energy Sciences, Heavy Elements Chemistry program[DE-FG02-13ER16414] |
| WOS Research Area | Science & Technology - Other Topics |
| WOS Subject | Multidisciplinary Sciences |
| WOS ID | WOS:000978834100006 |
| Publisher | NATURE PORTFOLIO |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/317193 |
| Collection | 物质科学与技术学院_硕士生 物质科学与技术学院_博士生 物质科学与技术学院_PI研究组_曹克诚组 |
| Corresponding Author | Wang, Yaxing; Xu, Chao; Albrecht-Schonzart, Thomas E.; Wang, Shuao |
| Affiliation | 1.Soochow Univ, Sch Radiol & Interdisciplinary Sci RAD X, State Key Lab Radiat Med & Protect, Jiangsu Higher Educ Inst, Suzhou, Peoples R China 2.Soochow Univ, Collaborat Innovat Ctr Radiat Med, Jiangsu Higher Educ Inst, Suzhou, Peoples R China 3.Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing, Peoples R China 4.Tsinghua Univ, Dept Chem, Minist Educ, Beijing, Peoples R China 5.Tsinghua Univ, Lab Organ Optoelect & Mol Engn, Minist Educ, Beijing, Peoples R China 6.Forschungszentrum Julich, IEK 9, Julich, Germany 7.Bruker Beijing Sci Technol Co Ltd, Shanghai, Peoples R China 8.ShanghaiTech Univ, Shanghai Key Lab High Resolut Electron Microscopy, Shanghai, Peoples R China 9.Colorado Sch Mines, Dept Chem, Golden, CO 80401 USA 10.Colorado Sch Mines, Nucl Sci & Engn Ctr, Golden, CO 80401 USA |
| Recommended Citation GB/T 7714 | Zhang, Hailong,Li, Ao,Li, Kai,et al. Ultrafiltration separation of Am(VI)-polyoxometalate from lanthanides[J]. NATURE,2023,616(7957). |
| APA | Zhang, Hailong.,Li, Ao.,Li, Kai.,Wang, Zhipeng.,Xu, Xiaocheng.,...&Wang, Shuao.(2023).Ultrafiltration separation of Am(VI)-polyoxometalate from lanthanides.NATURE,616(7957). |
| MLA | Zhang, Hailong,et al."Ultrafiltration separation of Am(VI)-polyoxometalate from lanthanides".NATURE 616.7957(2023). |
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