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Shrivastava KC, Kumar KSA, Sengupta A, Ali SM, Ramkumar J. Reversible Hydrophobic Deep Eutectic Solvent-Based Uranyl-Sensing Optode Film in Aqueous Streams: Color Transformation and Reusability. Anal Chem 2024; 96:12658-12666. [PMID: 39041178 DOI: 10.1021/acs.analchem.4c01357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
A hydrophobic deep eutectic solvent (HDES)-based optode was designed for the preconcentration and determination of the UO22+ ion in aqueous media using spectroscopic techniques [energy-dispersive X-ray fluorescence (EDXRF) and solid-state absorption]. The optode was developed by incorporation of HDES (tri-n-octyl phosphine oxide and decanoic acid in an equimolar ratio), tri-(2-ethylhexyl) phosphate, and 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol into a cellulose triacetate matrix. Characterization studies were carried out using different techniques to understand the roles of HDES as a plasticizer, UO22+ extractant, and Br-PADAP immobilizer. Uptake studies revealed that the optimal pH was 3 and sorption followed the type II adsorption isotherm. Uranium in the U-sorbed optode can be directly analyzed over a large concentration range of 0.021 × 10-3-2.1 × 10-3 Mol L-1 using EDXRF. The optode film exhibited a linear dynamic range of 0.84 × 10-6-84 × 10-6 Mol L-1 for uranium, with a lowest limit of detection of 0.084 × 10-6 Mol L-1 by colorimetric analysis. This optode-based method was employed for seawater analysis for its UO22+ concentration without any matrix separation, and the concentration was found to be 1.30 ± 0.06 × 10-8 Mol L-1. The optode exhibited better selectivity for UO22+ in the presence of various cations including Sr2+ and Cs+ in an aqueous medium. Compared to other prevailing optical sensors, this optode performed better in terms of key factors like pH, equilibration time, reusability, and detection limit.
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Affiliation(s)
- Komal C Shrivastava
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - K S Ajish Kumar
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Arijit Sengupta
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Sheikh Musharaf Ali
- Chemical Engineering Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
- Homi Bhabha National Institute, Mumbai 400094, India
| | - Jayshree Ramkumar
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
- Homi Bhabha National Institute, Mumbai 400094, India
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Saha A, Kumari K, Sharma S, Kumar R, Sahu M, Dumpala RMR, Pp MS, Deb SB, Saxena MK. Selective Extraction of Thorium(IV) from Uranium and Rare Earth Elements Using Tetraphenylethane-1,2-diylbis(phosphoramidate). Inorg Chem 2023. [PMID: 37269355 DOI: 10.1021/acs.inorgchem.3c00359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Tetraphenylethane-1,2-diylbis(phosphoramidate) in conjugation with a room temperature ionic liquid in chloroform medium is reported for the first time in the liquid-liquid extraction of thorium (Th). The extracted Th(IV) is collected as a white solid in the organic medium, thereby facilitating its easy separation. A high distribution ratio (D) of (12.4 ± 0.1) × 103 in 2-8 mol L-1 acidity range and high decontamination factors (α) of Th(IV) from uranium, lanthanides, and a number of transition elements makes this extraction process versatile and selective. A number of experimental investigations in synergism with extended X-ray absorption fine structure (EXAFS) spectroscopy and density functional theory (DFT) studies are interpreted to confirm the structure of the chelated complex. A 1:2 metal/ligand complex in which the two oxygen and two nitrogen atoms of each bis(phosphoramidate) molecule satisfying the eight coordination sites of Th(IV) is found to be formed. The extracted white solid thorium complex is easily converted to ThO2 after washing and heating at 1300 °C under O2 atmosphere. This work is expected to find direct application in the thorium fuel cycle, especially in the mining process of thorium from its ores and in the separation of fissile 233U from fertile 232Th in irradiated fuel.
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Affiliation(s)
- Abhijit Saha
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India 400085
| | - Khushboo Kumari
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India 400085
| | - Shikha Sharma
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, India 400085
| | - Ravi Kumar
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai, India 400085
| | - Manjulata Sahu
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India 400085
| | - Rama Mohana Rao Dumpala
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, India 400085
- Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology, P.O. Box 3640, and 76021 Karlsruhe, Germany
| | - M Shafeeq Pp
- Fuel Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India 400085
| | - Sadhan Bijoy Deb
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India 400085
| | - Manoj Kumar Saxena
- Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India 400085
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Sarkar S, Ammath S, Kirubananthan S, Suneesh AS. Investigation of the Phase Splitting Behaviour of U(VI) and Th(IV) loaded Trialkyl Phosphate Solvents in the Absence of Aqueous Phase. ChemistrySelect 2021. [DOI: 10.1002/slct.202103023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Subramee Sarkar
- Homi Bhabha National Institute Indira Gandhi Centre for Atomic Research Kalpakkam 603102 India
- Materials Chemistry and Metal Fuel Cycle Group Indira Gandhi Centre for Atomic Research Kalpakkam 603 102 India
| | - Suresh Ammath
- Homi Bhabha National Institute Indira Gandhi Centre for Atomic Research Kalpakkam 603102 India
- Materials Chemistry and Metal Fuel Cycle Group Indira Gandhi Centre for Atomic Research Kalpakkam 603 102 India
| | - Subashree Kirubananthan
- Homi Bhabha National Institute Indira Gandhi Centre for Atomic Research Kalpakkam 603102 India
- Materials Chemistry and Metal Fuel Cycle Group Indira Gandhi Centre for Atomic Research Kalpakkam 603 102 India
| | - Asokan Sudha Suneesh
- Materials Chemistry and Metal Fuel Cycle Group Indira Gandhi Centre for Atomic Research Kalpakkam 603 102 India
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Data S, Leung Wai J, Kumar S, Cameron AJ, Trehet M, Itumoh EJ, Feld J, Söhnel T, Leitao EM. The Step‐Wise Synthesis of Oligomeric Phosphoramidates. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shailja Data
- School of Chemical Sciences University of Auckland Private Bag, 92019 1142 Auckland New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology 6140 Wellington New Zealand
| | - Jeffery Leung Wai
- School of Chemical Sciences University of Auckland Private Bag, 92019 1142 Auckland New Zealand
| | - Saawan Kumar
- School of Chemical Sciences University of Auckland Private Bag, 92019 1142 Auckland New Zealand
| | - Alan J. Cameron
- School of Chemical Sciences University of Auckland Private Bag, 92019 1142 Auckland New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology 6140 Wellington New Zealand
- School of Biological Sciences University of Auckland 3b Symonds St 1142 Auckland New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery 1142 Auckland New Zealand
| | - Manon Trehet
- School of Chemical Sciences University of Auckland Private Bag, 92019 1142 Auckland New Zealand
| | - Emeka J. Itumoh
- School of Chemical Sciences University of Auckland Private Bag, 92019 1142 Auckland New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology 6140 Wellington New Zealand
| | - Joey Feld
- School of Chemical Sciences University of Auckland Private Bag, 92019 1142 Auckland New Zealand
| | - Tilo Söhnel
- School of Chemical Sciences University of Auckland Private Bag, 92019 1142 Auckland New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology 6140 Wellington New Zealand
| | - Erin M. Leitao
- School of Chemical Sciences University of Auckland Private Bag, 92019 1142 Auckland New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology 6140 Wellington New Zealand
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Zhang Z, Yong F, Zhang L, Chen H, Yuan WL, Xu D, Shen YH, Wang XH, He L, Tao GH. High performance task-specific ionic liquid in uranium extraction endowed with negatively charged effect. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116601] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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A review of the alpha radiolysis of extractants for actinide lanthanide separation in spent nuclear fuel reprocessing. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2021-1009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Radiation stability is one of the key properties to enable the efficient use of extractants in spent nuclear fuel with high radioactivity. The last several decades have witnessed a rapid progress in the radiation chemistry of extractants. A variety of studies and reviews pertinent to the radiation stability of extractants have been published. However, a thorough summary for the alpha radiolysis results of extractants is not available. In this review, we survey the development of alpha radiolysis of extractants for actinide lanthanide separation and compare their radiolysis behaviors induced by alpha particles and gamma rays. The discussion of alpha radiolysis of extractants is divided into three parts according to the functional groups of extractants (i.e., phosphine oxide, amide and bis-triazinyl bipyridines). Given the importance of radiation source to carry out alpha irradiation experiment, we first give a brief introduction to three practicable alpha radiation sources including alpha emitting isotopes, helium ion beam and reactor. We hope this review will provide useful information and unleash a broad palette of opportunities for researchers interested in radiation chemistry.
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Itumoh EJ, Data S, Leitao EM. Opening up the Toolbox: Synthesis and Mechanisms of Phosphoramidates. Molecules 2020; 25:E3684. [PMID: 32823507 PMCID: PMC7463754 DOI: 10.3390/molecules25163684] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/05/2020] [Accepted: 08/11/2020] [Indexed: 11/25/2022] Open
Abstract
This review covers the main synthetic routes to and the corresponding mechanisms of phosphoramidate formation. The synthetic routes can be separated into six categories: salt elimination, oxidative cross-coupling, azide, reduction, hydrophosphinylation, and phosphoramidate-aldehyde-dienophile (PAD). Examples of some important compounds synthesized through these routes are provided. As an important class of organophosphorus compounds, the applications of phosphoramidate compounds, are also briefly introduced.
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Affiliation(s)
- Emeka J. Itumoh
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand; (E.J.I.); (S.D.)
- Department of Industrial Chemistry, Ebonyi State University, Abakaliki 480001, Ebonyi State, Nigeria
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Shailja Data
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand; (E.J.I.); (S.D.)
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Erin M. Leitao
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand; (E.J.I.); (S.D.)
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
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