Ultralight crystalline hybrid composite material for highly efficient sequestration of radioiodine.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 38341406.
- Also identified by DOI 10.1038/s41467-024-45581-9 and PMC identifier 10858966.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Considering the importance of sustainable nuclear energy, effective management of radioactive nuclear waste, such as sequestration of radioiodine has inflicted a significant research attention in recent years. Despite the fact that materials have been reported for the adsorption of iodine, development of effective adsorbent with significantly improved segregation properties for widespread practical applications still remain exceedingly difficult due to lack of proper design strategies. Herein, utilizing unique hybridization synthetic strategy, a composite crystalline aerogel material has been fabricated by covalent stepping of an amino-functionalized stable cationic discrete metal-organic polyhedra with dual-pore containing imine-functionalized covalent organic framework. The ultralight hybrid composite exhibits large surface area with hierarchical macro-micro porosity and multifunctional binding sites, which collectively interact with iodine. The developed nano-adsorbent demonstrate ultrahigh vapor and aqueous-phase iodine adsorption capacities of 9.98 g.g<sup>-1</sup> and 4.74 g.g<sup>-1</sup>, respectively, in static conditions with fast adsorption kinetics, high retention efficiency, reusability and recovery.