The nature of salt effect in enhancing the extraction of rare earths by non-functional ionic liquids: Synergism of salt anion complexation and Hofmeister bias
文献类型：期刊论文
| 作者 | Sun, Pan2,3; Huang, Kun1,2; Liu, Huizhou2 |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2019-03-15 |
| 卷号 | 539页码:214-222 |
| 关键词 | Ionic liquids Salt effect Salt anion complexation Solvent extraction Rare earths |
| ISSN号 | 0021-9797 |
| DOI | 10.1016/j.jcis.2018.12.058 |
| 英文摘要 | Separation and recycling of rare-earths using ionic liquids as extractant are becoming a promising approach to replace traditional volatile organic solvents in recent years. Generally, the addition of some special salts could improve the extraction efficiency of rare-earths by numerous non-functional ionic liquids. However, knowledge behind the nature of the salt effect is limited. Here, we found that the enhancement in the extraction of rare-earth ions, Pr3+ ions, using non-functional ionic liquid, [A336] [NO3] (Tricaprylmethylammonium nitrate) was driven by the synergism of Hofmeister bias and complexation behaviors of salt anions with Pr3+ ions. Molecular dynamic simulations offered a new insight into the interaction mechanism of the ionic liquid with Pr3+ ions at liquid/liquid interface. It was revealed that salt anions could perform as a bridge to connect Pr3+ ions and the ionic liquid, so that promoted the extraction of Pr3+ ions. Therefore, the strong complexation ability of salt anions with Pr3+ ions and poor hydration of salt anions faciliated the transport of Pr3+ ions across liquid/liquid interface. (C) 2018 Elsevier Inc. All rights reserved. |
| WOS关键词 | MOLECULAR-DYNAMICS SIMULATION ; SOLVENT-EXTRACTION ; TRIVALENT LANTHANIDE ; AQUEOUS NITRATE ; ACTINIDE IONS ; FORCE-FIELD ; CHLORIDE ; COORDINATION ; SEPARATION ; METAL |
| 资助项目 | National Natural Science Foundation of China[51574213] ; National Natural Science Foundation of China[51074150] ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)[2013CB632602] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000458343500024 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 资助机构 | National Natural Science Foundation of China ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program) |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/27885]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Huang, Kun |
| 作者单位 | 1.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Pan,Huang, Kun,Liu, Huizhou. The nature of salt effect in enhancing the extraction of rare earths by non-functional ionic liquids: Synergism of salt anion complexation and Hofmeister bias[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2019,539:214-222. |
| APA | Sun, Pan,Huang, Kun,&Liu, Huizhou.(2019).The nature of salt effect in enhancing the extraction of rare earths by non-functional ionic liquids: Synergism of salt anion complexation and Hofmeister bias.JOURNAL OF COLLOID AND INTERFACE SCIENCE,539,214-222. |
| MLA | Sun, Pan,et al."The nature of salt effect in enhancing the extraction of rare earths by non-functional ionic liquids: Synergism of salt anion complexation and Hofmeister bias".JOURNAL OF COLLOID AND INTERFACE SCIENCE 539(2019):214-222. |
入库方式： OAI收割
来源：过程工程研究所
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