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Interfacial insights on the dibenzo-based crown ether assisted cesium extraction in [BMIM][Tf2N]–water binary system

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Abstract

The distribution coefficient of Cs is estimated using dibenzo-21-crown-7 (DB21C7) and di-benzo-18-crown-6 (DB18C6) in 1-butyl-3-methylimidazolium bis (trifluroromethanesulphonyl) imide (BMIMTF2N) ionic liquid by performing solvent extraction experiments. In addition, molecular dynamics studies on the extraction of cesium (Cs+) ion transfer from the aqueous phase to the BMIMTF2N phase is reported. The experimental findings gave a cesium distribution coefficient of 0.218 and 0.326, which agrees closely with the values of 0.2 and 0.5 obtained from MD simulation for the ionophores DB18C6 and DB21C7, respectively. Thus MD simulation may be helpful in screening the solvents prior to the experiments.

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Acknowledgments

This work was funded by the Board of Research in Nuclear Sciences (BRNS, Government of India) vide scheme no. 2013/36/30-BRNS/2352, dated: 26 November 2013.

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Authors and Affiliations

  1. Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India

    Rima Biswas, Viswanath Pasumarthi, Tamal Banerjee & Pallab Ghosh

  2. Chemical Engineering Division, Bhabha Atomic Research Center, Mumbai, 400085, India

    Sk. Musharaf Ali & Jayant M. Joshi

Authors
  1. Rima Biswas
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  2. Viswanath Pasumarthi
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  3. Tamal Banerjee
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  4. Pallab Ghosh
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Corresponding author

Correspondence to Tamal Banerjee.

Electronic supplementary material

The formation of the Cs–DB18C6 complex from the starting configuration (t = 0 ns) to its end i.e. t = 40 ns is provided as a part of Supplementary material. Below is the link to the electronic supplementary material.

Supplementary material 1 (MP4 8631 kb)

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Biswas, R., Pasumarthi, V., Banerjee, T. et al. Interfacial insights on the dibenzo-based crown ether assisted cesium extraction in [BMIM][Tf2N]–water binary system. J Radioanal Nucl Chem 311, 427–438 (2017). https://doi.org/10.1007/s10967-016-5050-8

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  • DOI: https://doi.org/10.1007/s10967-016-5050-8

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