Issue 91, 2025
From the journal:

Chemical Communications

High stabilization of pentavalent uranium on magnetite nanoparticles evidenced by high-energy-resolution X-ray absorption spectroscopy

Takumi Yomogida, ORCID logo *abc   Jaimy Scaria,d   Laura Fablet,d   Kohei Tokunaga, ORCID logo e   Syuntaro Dei,f   Kotaro Higashi,g   Naomi Kawamura, ORCID logo g   Yoshio Takahashi ORCID logo c  and  Rémi Marsac ORCID logo *b  

* Corresponding authors

a Nuclear Safety Research Center, Japan Atomic Energy Agency, 2-4 Shirakata, Naka, Tokai, Ibaraki, Japan

b Université Paris Cité, Institut de physique du globe de Paris, CNRS, F-75005 Paris, France

c Department of Earth and Planetary Science, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
E-mail: yomogida.takumi@jaea.go.jp

d Univ Rennes, CNRS, Géosciences Rennes – UMR 6118, F-35000 Rennes, France

e Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, Tomata-gun, Okayama, Japan

f Horonobe Underground Research Center, Japan Atomic Energy Agency, 432-2 Hokushin, Horonobe, Hokkaido 098-3224, Japan

g Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo 679-5198, Japan

Abstract

We observed that U(V) is more stable on magnetite nanoparticles than expected, across a wide range of pH and redox conditions and even after 10 days of reaction, as revealed by high-energy-resolution fluorescence-detection X-ray absorption spectroscopy combined with multivariate curve resolution.

Graphical abstract: High stabilization of pentavalent uranium on magnetite nanoparticles evidenced by high-energy-resolution X-ray absorption spectroscopy

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Article information

DOI
https://doi.org/10.1039/D5CC04540A
Article type
Communication
Submitted
08 Aug 2025
Accepted
13 Oct 2025
First published
14 Oct 2025

Chem. Commun., 2025,61, 17926-17929

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High stabilization of pentavalent uranium on magnetite nanoparticles evidenced by high-energy-resolution X-ray absorption spectroscopy

T. Yomogida, J. Scaria, L. Fablet, K. Tokunaga, S. Dei, K. Higashi, N. Kawamura, Y. Takahashi and R. Marsac, Chem. Commun., 2025, 61, 17926 DOI: 10.1039/D5CC04540A

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