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Liang YT, Bai SQ, Zhang YY, Li AY. Theoretical Study on the Coordination and Separation Capacity of Macrocyclic N-Donor Extractants for Am(III)/Eu(III). J Phys Chem A 2023; 127:6865-6880. [PMID: 37583058 DOI: 10.1021/acs.jpca.3c01629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
Designing ligands that can effectively separate actinide An(III)/lanthanide Ln(III) in the solvent extraction process remains one of the key issues in the treatment of accumulated spent nuclear fuel. Nitrogen donor ligands are considered as promising extractants for the separation of An(III) and Ln(III) due to their environmental friendliness. Four new macrocyclic N-donor hexadentate extractants were designed and their coordination with Am(III) and Eu(III), as well as their extraction selectivity and separation performance for Am(III) and Eu(III), were investigated by scalar relativistic density functional theory. A variety of theoretical methods have been used to evaluate the properties of the four ligands and the coordination structures, bonding properties, and thermodynamic properties of the complexes formed by the four ligands with Am(III) and Eu(III). The results of various wavefunction analysis methods including NBO analysis, quantum theory of atoms in molecules (QTAIM) analysis, and so on show that Am(III) has a stronger coordination ability with the ligands than Eu(III) due to the Am 5f orbitals more involved in bonding with the ligands than the Eu 4f orbitals, and the bonding environment of the N-donor in the ligand has a significant effect on its coordination ability of the metal ions. Thermodynamic analysis of the solvent extraction process shows that all of the four N-containing macrocyclic ligands have good extraction selectivity and separation performance for Am(III) and Eu(III). This study provides theoretical support for designing potential nitrogen-containing macrocyclic extractants with excellent separation performance.
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Affiliation(s)
- Yu Ting Liang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Shan Qin Bai
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Yi Ying Zhang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - An Yong Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
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Liu Y, Wang CZ, Wu QY, Lan JH, Chai ZF, Wu WS, Shi WQ. Theoretical Insights on the Complexation of Americium(III) and Europium(III) with Diglycolamide- and Dimethylacetamide-Functionalized Calix[4]arenes. Inorg Chem 2023; 62:8179-8187. [PMID: 37192470 DOI: 10.1021/acs.inorgchem.3c00546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Separation of minor actinides from lanthanides is one of the biggest challenges in spent fuel reprocessing due to the similar physicochemical properties of trivalent lanthanides (Ln(III)) and actinides (An(III)). Therefore, developing ligands with excellent extraction and separation performance is essential at present. As an excellent pre-organization platform, calixarene has received more attention on Ln(III)/An(III) separation. In this work, we systematically explored the complexation behaviors of the diglycolamide (DGA)/dimethylacetamide (DMA)-functionalized calix[4]arene extractants for Eu(III) and Am(III) using relativistic density functional theory (DFT). These calix[4]arene-derived ligands were obtained by functionalization with two or four binding units at the narrow edge of the calix[4]arene platform. All bonding nature analyses suggested that the Eu-L complexes possess stronger interaction compared to Am-L analogues, resulting in the higher extraction capacity of the these calix[4]arene ligands toward Eu(III). Thermodynamic analysis demonstrates that these pre-organized ligands on the calix[4]arene platform with four binding units yield better extraction abilities than the single ligands. Although DMA-functionalized ligands show stronger complexation stability for metal ions, in acidic solutions, the calix[4]arene ligands with DGA binding units have better extraction performance for Eu(III) and Am(III) due to the basicity of the DMA ligand. This work enabled us to gain a deeper understanding of the bonding properties between supramolecular ligands and lanthanides/actinides and afford useful insights into designing efficient supramolecular ligands for separating Ln(III)/An(III).
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Affiliation(s)
- Yang Liu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Cong-Zhi Wang
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Qun-Yan Wu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jian-Hui Lan
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Fang Chai
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Wang-Suo Wu
- Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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Zhang F, Liu Y, Ma KQ, Yan H, Luo Y, Wu FC, Yang CT, Hu S, Peng SM. Highly selective extraction of uranium from wastewater using amine-bridged diacetamide-functionalized silica. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:129022. [PMID: 35500348 DOI: 10.1016/j.jhazmat.2022.129022] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 04/22/2022] [Accepted: 04/25/2022] [Indexed: 06/14/2023]
Abstract
A major environmental concern related to nuclear energy is wastewater contaminated with uranium, thus necessitating the development of pollutant-reducing materials with efficiency and effectiveness. Herein, highly selective mesoporous silicas functionalized with amine-bridged diacetamide ligands SBA-15-ABDMA were prepared. Different spectroscopy techniques were used to probe the chemical environment and reactivity of the chelating ligands before and after sorption. The results showed that the functionalized SBA-15-ABDMA had a strong affinity for uranium at low pH (pH = 3) with desirable sorption capacity (68.82 mg/g) and good reusability (> 5). It showed excellent separation performance with a high distribution coefficient (Kd,U > 105 mL/g) and separation factors SFU/Ln > 1000 at a pH of 3.5 in the presence of lanthanide nuclides, alkaline earth metal and transition metal ions. In particular, SiO2spheres-ABDMA was used as a column material, which achieved excellent recovery of U(VI) (> 98%) and good reusability for samples of simulated mining and nuclear industries wastewater. XPS and crystallography studies clearly illustrated the tridentate coordination mode of U(VI)/PEABDMA and the mechanism and origin behind the high selectivity for U.
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Affiliation(s)
- Fan Zhang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan 621900, PR China
| | - Yi Liu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan 621900, PR China
| | - Kai-Qiang Ma
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan 621900, PR China
| | - Heng Yan
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan 621900, PR China
| | - Yue Luo
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan 621900, PR China
| | - Feng-Cheng Wu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan 621900, PR China
| | - Chu-Ting Yang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan 621900, PR China.
| | - Sheng Hu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan 621900, PR China
| | - Shu-Ming Peng
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan 621900, PR China.
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Liu Z, Li H, Liu Y, Zhao C, Jiao C, Zhou Y, Zhang M, Gao Y. Recent Progress on the Structure-Performance Relationship between Diglycolamide Extractants and f-Elements. SOLVENT EXTRACTION AND ION EXCHANGE 2022. [DOI: 10.1080/07366299.2021.2006884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Zhibin Liu
- Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China
| | - Huibo Li
- Department of Radiochemistry, China Institute of Atomic Energy, Beijing, China
| | - Yaoyang Liu
- Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China
| | - Chuang Zhao
- Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China
| | - Caishan Jiao
- Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China
| | - Yu Zhou
- Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China
| | - Meng Zhang
- Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China
| | - Yang Gao
- Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China
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Efficient UO22+ extraction by DAPhens with asymmetric terminal groups: The molecular design, spectral titration, liquid-liquid extraction and mechanism study. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ebenezer C, Vijay Solomon R. Preorganization of N, O-hybrid phosphine oxide chelators for effective extraction of trivalent Am/Eu ions - A computational study. NEW J CHEM 2022. [DOI: 10.1039/d1nj06029e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N, O-hybrid phosphine oxide ligands with N-heterocyclic cores are the advanced extractants for extracting actinides over lanthanides. Yet, the challenging task in designing an efficient hybrid ligand is tracing the...
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Meng R, Xu L, Yang X, Sun M, Xu C, Borisova NE, Zhang X, Lei L, Xiao C. Influence of a N-Heterocyclic Core on the Binding Capability of N,O-Hybrid Diamide Ligands toward Trivalent Lanthanides and Actinides. Inorg Chem 2021; 60:8754-8764. [PMID: 34077191 DOI: 10.1021/acs.inorgchem.1c00715] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
N,O-hybrid diamide ligands with N-heterocyclic skeletons are one of the promising extractants for the selective separation of actinides over lanthanides in a highly acidic HNO3 solution. In this work, three hard-soft donor mixed diamide ligands, pyridine-2,6-diylbis(pyrrolidin-1-ylmethanone) (Pyr-PyDA), 2,2'-bipyridine-6,6'-diylbis(pyr-rolidine-1-ylmethanone) (Pyr-BPyDA), and (1,10-phenanthroline-2,9-diyl)bis(pyrrolidin-1-ylmethanone) (Pyr-DAPhen), were synthesized and used to probe the influence of N-heterocyclic cores on the complexation and extraction behaviors with trivalent lanthanides and actinides. 1H NMR titration experiments demonstrated that 1:1 metal-to-ligand complexes were mainly formed between the three ligands and lanthanides, but 1:2 type complexes were also formed between tridentate Pyr-PyDA and Lu(III). The stability constants (log β) of these three ligands with two typical lanthanides, Nd(III) and Eu(III), were determined through spectrophotometric titration. It is found that Pyr-DAPhen formed the most stable complexes, while Pyr-PyDA formed the most unstable complexes with lanthanides, which coincided well with the following solvent extraction results. The solid-state structures of 1:1 type complexes of these three ligands with La(III), Nd(III), and Er(III) in nitrate media were identified by a single-crystal X-ray diffraction technique. Nd(III) and Er(III) were 10-coordinated with Pyr-PyDA, Pyr-BPyDA, and Pyr-DAPhen via one ligand molecule and three nitrate ions. La(III), because of its larger ionic radius, was 11-coordinated with Pyr-DAPhen through one ligand molecule, three nitrate ions, and one methanol molecule. Solvent extraction experiments showed that the preorganized phenanthroline-derived Pyr-DAPhen had the best extraction performance for trivalent actinide among the three ligands tested. This work provides some experimental insights into the design of more efficient ligands for trivalent actinide separation by adjusting the N-heterocyclic cores.
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Affiliation(s)
- Ruixue Meng
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.,Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Lei Xu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiao Yang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Mingze Sun
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chao Xu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Nataliya E Borisova
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, GSP-1, Moscow 119991, Russian Federation
| | - Xingwang Zhang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.,Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Lecheng Lei
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.,Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Chengliang Xiao
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.,Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
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Xu L, Pu N, Yuan J, Wei P, Dong X, Wang Y, Chen J, Xu C. Ligand rigidity and electronic effect on the complexation of hexavalent plutonyl with three dicarboxylic acids: a combined spectrophotometric and computational study. NEW J CHEM 2020. [DOI: 10.1039/d0nj00344a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Both the ligands’ rigidity and electronic structure contribute to the stability and coordination mode of Pu(vi) complexes with three dicarboxylic acids.
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Affiliation(s)
- Lei Xu
- Institute of Nuclear and New Energy Technology, Tsinghua University
- Beijing 100084
- China
| | - Ning Pu
- Institute of Nuclear and New Energy Technology, Tsinghua University
- Beijing 100084
- China
| | - Jianhua Yuan
- Institute of Nuclear and New Energy Technology, Tsinghua University
- Beijing 100084
- China
| | - Pingping Wei
- Institute of Nuclear and New Energy Technology, Tsinghua University
- Beijing 100084
- China
| | - Xue Dong
- Institute of Nuclear and New Energy Technology, Tsinghua University
- Beijing 100084
- China
| | - Yingcai Wang
- Institute of Nuclear and New Energy Technology, Tsinghua University
- Beijing 100084
- China
| | - Jing Chen
- Institute of Nuclear and New Energy Technology, Tsinghua University
- Beijing 100084
- China
| | - Chao Xu
- Institute of Nuclear and New Energy Technology, Tsinghua University
- Beijing 100084
- China
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