Redoxable Deep Eutectic Solvent Boosts Recovery Efficiency of Neptunium.

ABSTRACT: Efficient decontamination and recovery of neptunium (Np) are some of the most challenging tasks in nuclear waste management due to the unique redox nature of Np. A feasible path to fulfill this task is converting inextractable Np-(V) to extractable Np-(IV) or Np-(VI), yet it has not been satisfactorily solved, owing to the inefficient valence conversion. Herein, we report the design and synthesis of a novel redoxable deep eutectic solvent (DES) to realize the in situ reduction of Np-(V) in a biphasic extraction system. With the synergistic effects of complexation by a diglycolamide ligand (hydrogen-bonding acceptor) and reduction by phenol (hydrogen-bonding donor), Np-(V) in the aqueous phase can be effectively reduced to Np-(IV) and extracted into the organic phase, affording a 1000-fold

SUBMITTER: Tang Q 

PROVIDER: S-EPMC12301857 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature