Issue 24, 2016

A trialkyl phosphine oxide functionalized task specific ionic liquid for actinide ion complexation: extraction and spectroscopic studies

Abstract

A trialkylphosphine oxide functionalized task specific ionic liquid (PO-TSIL) with a NTf2 counter anion was synthesized and evaluated for the extraction of actinide ions such as UO22+ and Pu4+ from acidic feed solutions using room temperature ionic liquids (RTIL) such as [BMIM][NTf2] and [OMIM][NTf2] as the diluents. The extraction data were compared with those obtained with tri-n-octylphosphine oxide (TOPO) in the same set of RTILs. The extracted species following a cation-exchange mechanism were analyzed by the conventional slope analysis method. The nature of the bonding in the extracted complexes was investigated by various spectroscopic techniques such as luminescence and UV-visible spectroscopy. Studies on the stripping and radiation stability were also carried out for possible nuclear fuel cycle applications.

Graphical abstract: A trialkyl phosphine oxide functionalized task specific ionic liquid for actinide ion complexation: extraction and spectroscopic studies

Supplementary files

Article information

Article type
Communication
Submitted
16 Nov 2015
Accepted
10 Feb 2016
First published
11 Feb 2016

RSC Adv., 2016,6, 19763-19767

Author version available

A trialkyl phosphine oxide functionalized task specific ionic liquid for actinide ion complexation: extraction and spectroscopic studies

M. Paramanik, D. R. Raut, A. Sengupta, S. K. Ghosh and P. K. Mohapatra, RSC Adv., 2016, 6, 19763 DOI: 10.1039/C5RA24174J

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