Interaction between Uranyl Cations and Layered Double Hydroxide Nanoparticles: Implications for Nuclear Wastewater Management.

ABSTRACT: Effective uranium (U) capture is required for the remediation of contaminated solutes associated with the nuclear fuel cycle, including fuel reprocessing effluents, decommissioning, or nuclear accident cleanup. Here, interactions between uranyl cations (UO₂ ²⁺) and a Mg-Al layered double hydroxide (LDH) were investigated using two types of uranyl-bearing LDH colloids. The first (ULDH) was synthesized by coprecipitation with 10% of Mg²⁺ substituted by UO₂ ²⁺. Alternatively, UO₂ ²⁺ was added to a neoformed LDH to obtain the second uranyl-bearing LDH colloid (LDHU). In both the LDHU and ULDH colloid systems, schoepite (UO₂)₈O₂(OH)₁₂·12H₂O, was formed. The presenc

SUBMITTER: Peter T 

PROVIDER: S-EPMC11656702 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature