Radiation effect on ionic liquid [Hbet][Tf2N] for Nd2O3 separation from simulated spent nuclear fuels


Radiation-chemical stability of ionic liquid [Hbet][Tf2N] has been investigated under gamma irradiation for Nd2O3 separation from simulated spent nuclear fuels. It was found that Nd2O3 dissolution decreases with increasing absorbed dose of [Hbet][Tf2N]. However, the dissolution ability of irradiated [Hbet][Tf2N] to Nd2O3 can be regenerated after washing with water. The radiolytic products of [Hbet][Tf2N] were identified by EMI–MS, and [Hbet]+ group occurred a little radiolysis during irradiation. The UV–Visible spectra shown an increase in absorption around 275 nm probably due to the radiolysis of [Hbet][Tf2N]. FTIR spectra shown little variation around 1730 cm−1 under high radiation dose.

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This research is supported by the Strategic Priority Research Program of Chinese Academy of Sciences (Nos. XDA21010202, XDA03010402), Young Scholar of CAS “Light of West China” Program for Fang-li Fan (No. 2016-84) and the Natural Sciences Foundation of Gansu Province (No. 17JR5RA298).

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Fan, F., Chen, D., Huang, Q. et al. Radiation effect on ionic liquid [Hbet][Tf2N] for Nd2O3 separation from simulated spent nuclear fuels. J Radioanal Nucl Chem (2020). https://doi.org/10.1007/s10967-020-07306-2

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  • Ionic liquid
  • Radiation stability
  • Spent nuclear fuel
  • Dissolution separation