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Rout A, Ramanathan N. Extraction and Selective Separation of Zr IV from Ln III/An III Using an Undiluted Phosphonium Ionic Liquid. Chempluschem 2024; 89:e202300406. [PMID: 37947367 DOI: 10.1002/cplu.202300406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/12/2023]
Abstract
Solvent extraction of Zr(IV) in an undiluted phosphonium based ionic liquid (IL) and its selective separation from Ln(III) and An(III) has been investigated in the present study. Eu(III)/Am(III) were chosen as the representative Ln(III)/An(III). Tri(hexyl)tetradecylphosphonium nitrate ([P66614][NO3]) was chosen as IL phase and the feed phase was nitric acid containing the target metal ions. The extraction process was accomplished at different experimental parameters such as the concentration of initial nitric acid, initial feed metal concentration and equilibration time to explore the extractability of the proposed IL towards Zr(IV). The efficient extraction of Zr(IV) without any external ligand in IL phase and negligible extraction of Eu(III)/Am(III) were distinctly discerned leading to noteworthy separation factors for Zr(IV). The loading experiment revealed a noticeable growth of equilibrium concentrations of Zr(IV) in IL phase while that of Eu(III) was very less irrespective of the initial feed concentration. The association of two IL moieties in the complex formation process has been inferred. Nitrate ion was found to be superior as IL anion in terms of metal loading in comparison to other anions. Thermodynamics of extraction and the stripping of the loaded Zr(IV) from IL phase using a suitable stripping solution have also been investigated.
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Affiliation(s)
- Alok Rout
- Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, India
| | - Nagarajan Ramanathan
- Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, India
- Indira Gandhi Centre for Atomic Research, A CI of Homi Bhabha National Institute, Kalpakkam, 603102, Tamil Nadu, India
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Gerasimov MA, Pozdeev AS, Evsiunina MV, Kalle P, Yarenkov NR, Borisova NE, Matveev PI. Ionic Liquid as a N,O-Donor Ligand-Based Extraction System Modifier: Establishing the Mechanism of Am(III)-Selectivity Increasing. Inorg Chem 2024; 63:2109-2121. [PMID: 38237044 DOI: 10.1021/acs.inorgchem.3c03944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
In this work, we studied the extraction systems for the separation f-elements based on the tetradentate N,O-donor ligand di(N-ethyl-4-ethylanilide) 2,2'-dipyridyl-6,6'-dicarboxylic acid (L). The organic phase of these systems was perspective fluorine-containing organic solvents-metanitrobenzotrifluoride (F-3), ionic liquid C4mimNTf2 (IL), and their mixture. The increase of Am(III) selectivity in the presence of Ln(III) in cases of the diluent mixture was shown. The mechanism of the f-element complexation leading to the improved properties of the extraction systems was studied by UV-visible, Raman-spectroscopy, XRD-study, and density functional theory calculations.
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Affiliation(s)
- M A Gerasimov
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | - A S Pozdeev
- Department of Chemistry and Biochemistry, Utah State University, 0300 Old Main Hill, Logan, Utah 84322-0300, United States
| | - M V Evsiunina
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | - P Kalle
- N.S. Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Moscow 119991, Russia
| | - N R Yarenkov
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | - N E Borisova
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | - P I Matveev
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
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Patil SM, Agrawal R, Gupta R, Kumar Gupta S, Ghosh A, Kumar S, Jayachandran K, Ghanty TK. Understanding the excited state dynamics and redox behavior of highly luminescent and electrochemically active Eu(III)-DES complex. Dalton Trans 2023; 52:17349-17359. [PMID: 37937949 DOI: 10.1039/d3dt02764c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Deep eutectic solvents (DES) are considered a novel class of environmentally benign molecular solvents that are considered as potential solvents for nuclear fuel reprocessing, material recycling, and many other technological applications in both research and industry. However, there is a complete dearth of understanding pertaining to the behavior of metal ions in DES. Herein, we have investigated the speciation, complexation behavior, photochemistry, and redox properties and tried to obtain insight into the chemical aspects of the europium ion in DES (synthesized from heptyltriphenylphosphonium bromide and decanoic acid). The same has been probed using time-resolved photoluminescence (TRPL), cyclic voltammetry (CV), synchrotron-based extended X-ray absorption fine structure (EXAFS) spectroscopy, and density functional theory (DFT) calculations. TRPL indicated the stabilization of europium in the +3 oxidation state, favoring the potential of the Eu(III)-DES complex to emit red light under near UV excitation and the existence of inefficient energy transfer between DES and Eu3+. EXAFS analysis revealed the presence of Eu-O and Eu-Br, which represent the local surroundings of Eu3+ in the Eu(III)-DES complex. TRPL measurement has also suggested two distinct local environments of europium ions in the complex. DFT calculations supported the EXAFS findings, confirming that the Eu(III)-DES structure involves not only the oxygen atom of decanoic acid but also the oxygen atoms from the nitrate ions, contributing to the local coordination of Eu(III). Electrochemical studies demonstrated that the redox reaction of Eu(III)/Eu(II) in DES displays quasi-reversible behavior. The reaction rate was observed to increase with higher temperatures. The findings of this study can contribute to the understanding of the fundamental properties and potential applications of this luminescent and electrochemically active complex and pave the way for further studies and the development of novel materials with enhanced luminescent and electrochemical properties.
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Affiliation(s)
- Sushil M Patil
- Fuel Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - Ruchi Agrawal
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - Ruma Gupta
- Fuel Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - Santosh Kumar Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - Ayan Ghosh
- Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
| | - Sumit Kumar
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - Kavitha Jayachandran
- Fuel Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
| | - Tapan K Ghanty
- Bio-Science Group, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
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Lee J, Fairley M, Goff GS, Brennecke JF. Quantification of zwitterion betaine in betaine bis(trifluoromethylsulfonyl)imide and its influence on liquid-liquid equilibrium with water. Chem Commun (Camb) 2023; 59:13599-13602. [PMID: 37888958 DOI: 10.1039/d3cc03565d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Ionic liquids (ILs) have been proposed as extractants for separation of metals, including rare earth elements. In particular, protonated betaine bis(trifluoromethylsulfonyl)imide ([HBet][TFSI]) exhibits liquid-liquid phase behavior with water that can be tuned by complexation with various metals. Here we show that previously undetected neutral zwitterionic betaine formed during the IL synthesis can affect the phase behaviour.
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Affiliation(s)
- Jaeseong Lee
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, USA.
| | - Melissa Fairley
- Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - George S Goff
- Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - Joan F Brennecke
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, USA.
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Understanding the Coordination Behavior of Quaternary Ammonium and Phosphonium Nitrate Ionic Liquids under Gamma Irradiation: A Combined Spectroscopic Investigation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Feed phase salting agent prevails the absence of organic phase Ligand: A sustainable extraction process for Eu(III)/Am(III) in an undiluted phosphonium ionic liquid. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Rout A, Kumar S, Ramanathan N. Unraveling the Coordination Approach of Eu(III) in Cyphos Nitrate Ionic Liquid – A Comprehensive Luminescence Spectroscopy Study. Dalton Trans 2022; 51:5534-5545. [DOI: 10.1039/d2dt00422d] [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
In consideration of the mounting attention of the ionic liquid: Cyphos 101 (trihexyl(tetradecyl)phoshonium chloride: [P66614][Cl]) in the recovery of rare earth and other valuables from their waste matrices, an effort...
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Fazil S, Menaa F, Liaqat K, Khan MH, Rehman W, Khan MM, Siraj Ul Haq, Sajid M, Farooq M, Menaa B, Hafeez M. Synergistic Extraction of Europium (III) using Di-n-Butylsulfoxide and PicrolonicAcid. Comb Chem High Throughput Screen 2021; 25:861-869. [PMID: 33568027 DOI: 10.2174/1386207324666210210105511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 01/05/2021] [Accepted: 01/17/2021] [Indexed: 11/22/2022]
Abstract
AIM AND OBJECTIVE Europium (Eu(III))isa rare-earth metal, the softest, least dense, and most volatile member of lanthanides. It is greatly applied in control rods of nuclear reactors. Although various extraction methods of Eu(III)have been reported, we present a novel mixture ofeasily available extractants in optimizedexperimental conditions to extract it efficiently, quickly, and cost-effectively. MATERIALS AND METHODS Physical-chemical conditions (e.g. pH, equilibration time, temperature, europium concentration, extractants concentration, presence of specific metal ions) were optimized. The extractantspicrolonic acid (HPA) and di-n-butylsulfoxide (DBSO) were thoroughly mixed at equal concentrationin chloroform. Standard Eu(III) solution was used for method accuracy.Reagent blank was prepared under identical conditions but without metal ions.Using the metallochromic dye arsenazoIII as blank, absorbance of Eu(III) was measured spectrophotometricallyat 651 nm. Distribution ratio (i.e.Eu(III) concentration in aqueous phase before and after extraction) defined the extraction yield. RESULTS HPA/DBSO mixture (0.01 M)had a synergistic effect on Eu(III) extraction (1.19×10-5 mole/dm3) achieving a maximum yield (≥99%) at pH2, during 5 minutes equilibration,atroom temperature.Eu(III) extraction was reduced depending on the nature but not on the metal ions concentration. Extractants could be recycled four times without consequent degradation. Deionized water (dH2O) was the best strippantbesides its availability and low-cost. The composition of the extracted adduct was defined as Eu(PA)3.2DBSO. CONCLUSION This alternative method was stable, simple, rapid, cost-effective, reliable, accurate and sensitive.It could be used forEu(III) extraction and refining on a pilot plant scale.
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Affiliation(s)
- Srosh Fazil
- Department of Chemistry, University of Poonch Rawalakot, Azad Kashmir. Pakistan
| | - Farid Menaa
- Department of Chemistry and Nanomedicine, California Innovations Corporation, San Diego, CA. United States
| | - Khurram Liaqat
- Department of Chemistry, Hazara University, Mansehra, KPK. Pakistan
| | - Muhammad Haleem Khan
- Department of Chemistry, University of Azad Jammu & Kashmir, Muzaffarabad. Pakistan
| | - Wajid Rehman
- Department of Chemistry, Hazara University, Mansehra, KPK. Pakistan
| | - Mohammad Mansoob Khan
- Chemical Sciences, Faculty of Sciences, University Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410. Brunei Darussalam
| | - Siraj Ul Haq
- Department of Chemistry, University of Azad Jammu & Kashmir, Muzaffarabad. Pakistan
| | - Muhammad Sajid
- 6Department of Biochemistry, Hazara University, Mansehra, KPK. Pakistan
| | - Muhammad Farooq
- Department of Physics, Hazara University, Mansehra, KPK. Pakistan
| | - Bouzid Menaa
- Department of Chemistry and Nanomedicine, California Innovations Corporation, San Diego, CA. United States
| | - Muhammad Hafeez
- Department of Chemistry, University of Azad Jammu & Kashmir, Muzaffarabad . Pakistan
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Rout A, Kumar S, Ramanathan N. Probing the coordination of europium(III) in a functionalized ionic liquid using luminescence spectroscopy. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Liquid-liquid extraction of europium(III) in an alkyl ammonium based ionic liquid containing diglycolamic acid. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Equilibrium and kinetics of praseodymium and neodymium extraction from NdFeB magnet-leaching solutions with [R4N+][NO3−] using single drop column. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114376] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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