Radiation Effect of Carboxyl-Functionalized Task-Specific Ionic Liquids on UO22+ Removal: Experimental Study with DFT Validation

被引：6

作者：

Ao, Yinyong ^{[1
]}

Chen, Jian ^{[1
]}

Wang, Yue ^{[2
]}

Chen, Hongbing ^{[1
]}

Li, Jiuqiang ^{[2
]}

Zhai, Maolin ^{[2
]}

机构：

[1] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Peoples R China

[2] Peking Univ, Coll Chem & Mol Engn, BNLMS, Dept Appl Chem, Beijing 100871, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2017年 / 121卷 / 08期

基金：

美国国家科学基金会;

关键词：

ENERGY-ADJUSTED PSEUDOPOTENTIALS; INDUCED REDOX REACTIONS; RADIOLYTIC PRODUCTS; GAMMA-IRRADIATION; CONSTITUENT IONS; PHASE-BEHAVIOR; EXTRACTION; COMPLEXES; BIS(TRIFLUOROMETHYLSULFONYL)IMIDE; IDENTIFICATION;

D O I：

10.1021/acs.jpcb.6b11395

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Experimental study with DFT validation on the effect of radiation on 1-carboxymethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide ([HOOCCH2MIM][NTf2]) as a solvent and extractant in rapid homogeneous extraction of UO22+ was performed for the first time. The radiolytic products of the anions and cations of [HOOCCH2MIM] [NTf2] were identified by F-19 NMR and high-resolution ESI-MS, respectively, and they were attributed to a decrease in UO22+ partitioning. Experimental study with DFT validation for complexing reactions between [HOOCCH2MIM] [NTf2] and radiolytic products proved that F- competition was one of the main reasons for the decrease in UO22+ partitioning. However, UO22+ partitioning in irradiated [HOOCCH2MIM] [NTf2] can largely be recovered after thorough water washing because of the removal of radiolytic products of [NTf2](-).

引用

页码：1893 / 1899

页数：7

共 8 条

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SCIENTIFIC REPORTS, 2017, 7
[3] Fast selective homogeneous extraction of UO22+ with carboxyl-functionalised task-specific ionic liquids
Yinyong Ao
Jian Chen
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Jiuqiang Li
Maolin Zhai
Scientific Reports, 7
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Gui, Jianzhou
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Cao, Shuyun
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Gui, Jianzhou
CORROSION SCIENCE, 2019, 153 : 301 - 313

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