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Selective separation of trace nickel(II) and gold(I) ions via hollow fiber supported liquid membrane enhanced by synergistic extractants D2EHPA/TBP. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103427] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Cai Y, Yan Q, Wang M, Chen J, Fu H, Ye J, Conradson SD, Yuan L, Xu C, Feng W. Endowing 2,6-bis-triazolyl-pyridine of poor extraction with superior efficiency for actinide/lanthanide separation at high acidity by anchoring to a macrocyclic scaffold. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125745. [PMID: 33866294 DOI: 10.1016/j.jhazmat.2021.125745] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/13/2021] [Accepted: 03/22/2021] [Indexed: 06/12/2023]
Abstract
Exploring nitrogen-containing extractants for recovering hazardous minor actinides that are workable in solutions of high acidity has been a challenge in nuclear waste treatment. Herein, we report our findings that 2,6-bis-triazolyl-pyridine (PyTri), which is ineffective as a hydrophobic ligand for minor actinide separation, turns into an excellent extractant that exhibits unexpectedly high efficiency and selectivity (SFAm/Eu = 172, 1 M HNO3) when attaching to pillar[5]arene platform. Surprisingly, the distribution ratio of Am(III) (DAm) is 4300 times higher than that of the acyclic PyTri ligand. The solvent extraction performance of this pillar[5]arene-achored PyTri not only far exceeds the best known pillar[5]arene ligands reported to date, but also stays comparable to other reported outstanding extractants. Slope analysis indicates that each P[5]A-PyTri can bind two metal ions, which is further corroborated by spectroscopic characterizations. Thermodynamic studies imply that the extraction process is exothermic and spontaneous in nature. Complexation investigation via EXAFS technique and DFT calculations strongly suggest that each Eu(III) ion is coordinated to three PyTri arms through a nine-coordination mode. This work provides a N-donor extractant that can operate at high acidity for minor actinide partitioning and implicates a promising approach for transforming poor extractants into superior ones.
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Affiliation(s)
- Yimin Cai
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Qiang Yan
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Mengxin Wang
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Jing Chen
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Haiying Fu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Jiawei Ye
- Irradiation Preservation Technology Key Laboratory of Sichuan Province, Chengdu 610101, China
| | - Steven D Conradson
- Department of Complex Matter, Jozef Stefan Institute, 1000 Ljubljana, Slovenia; Department of Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Lihua Yuan
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Chao Xu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China.
| | - Wen Feng
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, College of Chemistry, Sichuan University, Chengdu 610064, China.
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Kedari CS, Manohar S, Kaushik CP. Permeation of Am(III) from Water-Soluble, Organic Polyacids across Hollow-Fiber Renewable Liquid Membranes Facilitated with HDEHP/Dodecane: Contrivance of Chemical Dynamics and Mass Transfer Resistances. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c06161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Smitha Manohar
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
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Sunsandee N, Phatanasri S, Pancharoen U. Separation of homogeneous palladium catalysts from pharmaceutical industry wastewater by using synergistic recovery phase via HFSLM system. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Pabby A, Swain B, Sonar N, Mittal V, Valsala T, Ramsubramanian S, Sathe D, Bhatt R, Pradhan S. Radioactive waste processing using membranes: State of the art technology, challenges and perspectives. SEPARATION & PURIFICATION REVIEWS 2021. [DOI: 10.1080/15422119.2021.1878221] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- A.K. Pabby
- INRP(O), Nuclear Recycle Board, BARC, Palghar, Tarapur, India
- Faculty of Chemical Sciences , Homi Bhabha National Institute, Mumbai, Anushaktinagar, India
| | - B. Swain
- Faculty of Chemical Sciences , Homi Bhabha National Institute, Mumbai, Anushaktinagar, India
- INRPC, Nuclear Recycle Board (T), BARC, Maharashtra, Tarapur, India
| | - N.L. Sonar
- INRP(O), Nuclear Recycle Board, BARC, Palghar, Tarapur, India
| | - V.K. Mittal
- INRP(O), Nuclear Recycle Board, BARC, Palghar, Tarapur, India
| | - T.P. Valsala
- INRP(O), Nuclear Recycle Board, BARC, Palghar, Tarapur, India
| | | | - D.B. Sathe
- INRP(O), Nuclear Recycle Board, BARC, Palghar, Tarapur, India
| | - R.B. Bhatt
- INRP(O), Nuclear Recycle Board, BARC, Palghar, Tarapur, India
| | - S. Pradhan
- INRP(O), Nuclear Recycle Board, BARC, Palghar, Tarapur, India
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