Radiation stability of diglycolamide functionalized calix[4]arenes in ionic liquid: Solvent extraction, EPR and GC-MS studies
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Sengupta, A.
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Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, IndiaBhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
Sengupta, A.
[1
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Mohapatra, P. K.
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Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, IndiaBhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
Mohapatra, P. K.
[1
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Patil, A. B.
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Paul Scherrer Inst, Chem Proc & Mat Res Grp, CH-5232 Villigen, SwitzerlandBhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
Patil, A. B.
[2
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Kadam, R. M.
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Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, IndiaBhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
Kadam, R. M.
[1
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Verboom, W.
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Univ Twente, MESA Inst Nanotechnol, Lab Mol Nanofabricat, POB 217, NL-7500 AE Enschede, NetherlandsBhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
Verboom, W.
[3
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[1] Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
[2] Paul Scherrer Inst, Chem Proc & Mat Res Grp, CH-5232 Villigen, Switzerland
Ionic liquid-based solvent systems containing diglycolamide-functionalized calix[4]arenes (C4DGAs) are efficient for actinide ion extraction from nitric acid feeds. Therefore, the radiolytic stability of three C4DGAs (wide-rim, narrow-rim and both side DGA-functionalized calix[4]arenes) and TODGA (N,N,N',N'-tetraoctyldiglycolamide) (used for comparison purpose), was evaluated by exposing their solutions in an ionic liquid as well as a 95:5 mixture of n-dodecane + isodecanol to gamma radiation up to an absorbed dose of 1000 kGy. Liquid-liquid extraction studies were carried out using Am-241 as a radiotracer. Apart from a decrease in the D-Am values, ascribed to radiolytic degradation, FT-IR, EPR and GC-MS studies were carried out to characterize the degraded species. The different extractants are less sensitive to radiolytic degradation in the ionic liquid than in the molecular diluent. (c) 2016 Elsevier B.V. All rights reserved.
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Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, IndiaBhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
Ansari, Seraj Ahmad
Mohapatra, Prasanta Kumar
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Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, IndiaBhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
Mohapatra, Prasanta Kumar
Ali, Sheikh Musharaf
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Bhabha Atom Res Ctr, Div Chem Engn, Bombay 400085, Maharashtra, IndiaBhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
Ali, Sheikh Musharaf
Sengupta, Arijit
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Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, IndiaBhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
Sengupta, Arijit
Bhattacharyya, Arunasis
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Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, IndiaBhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
Bhattacharyya, Arunasis
Verboom, Willem
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Univ Twente, Lab Mol Nanofabricat, MESA Inst Nanotechnol, POB 217, NL-7500 AE Enschede, NetherlandsBhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India