X-ray absorption spectroscopy reveals the transient oxidation state during microbial uranium(VI) reduction by a sulfate-reducing microorganism

X-ray absorption spectroscopy reveals the transient oxidation state during microbial uranium(VI) reduction by a sulfate-reducing microorganism

Hilpmann, S.; Roßberg, A.; Steudtner, R.; Drobot, B.; Hübner, R.; Bok, F.; Prieur, D.; Bauters, S.; Kvashnina, K.; Stumpf, T.; Cherkouk, A.

High-energy-resolution fluorescence-detected X-ray absorption near-edge structure (HERFD-XANES) and extended X-ray absorption fine structure (EXAFS) spectroscopy was used to investigate the reduction of U(VI) by the sulfate-reducing bacterium Desulfosporosinus hippei DSM 8344T, confirming the partial reduction of U(VI) and the presence of U(V).

Keywords: uranium(VI) reduction; sulfate-reducing bacteria; HERFD-XANES

  • Open Access Logo Contribution to external collection
    in: ESRF Highlights 2023, Grenoble: European Synchrotron Radiation Facility, 2024

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