Monodispersed uranium atomic site on carbonaceous materials.

Authors

Yadong Li, Yifei Dang, Meng Jin, Yuan Hu, Kecheng Cao

Published in

RSC advances. Volume 15. Issue 31. Pages 25250-25255. Jul 15, 2025. Epub Jul 16, 2025.

Abstract

The adsorption behavior of uranium on carbon substrates proves crucial for nuclear energy, catalytic and environmental technologies. This study reveals distinct uranium immobilization mechanisms across graphene, amorphous carbon, and nanodiamonds by aberration-corrected TEM. While amorphous carbon and nanodiamonds effectively anchor atomic uranium through uranyl ion adsorption, pristine graphene exhibits inherent resistance to uranyl binding. Graphene captures dissociated uranium atoms from amorphous carbon only under electron beam irradiation. This study bridges critical knowledge gaps in uranium-carbon interactions, offering a foundation for designing carbon-supported catalysts and uranyl adsorption materials.

PMID:
40673246
Bibliographic data and abstract were imported from PubMed on 17 Jul 2025.

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