Abstract

Room temperature ionic liquids (RTILs) are considered as a replacement of molecular diluents in the extraction of metal ions from an aqueous phase. Owing to their good radiolytic stability and higher extraction efficacy, RTILs have been extensively studied for the extraction of actinides and lanthanides from nuclear waste solutions. The underlying chemistry behind actinide extraction in RTILs is challenging because of complexity in understanding the extraction mechanisms and species involved in the extraction process. At the same time, the lesser-known extraction behaviour of transuranic elements (TUE) (Np, Pu, Am, and Cm) in RTILs needs to be highlighted. In the interest of readers, a review focusing on the extraction of TUE in RTILs has been presented here. This review aims to provide valuable information about the thermodynamics, extraction profiles, and mechanisms of TUE extraction in RTILs. Moreover, an insightful discussion on the radiolytic stability of RTILs has been included in this review.

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