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Updated: Sep 2, 2025

A Facile Synthetic Method to Obtain Bismuth Oxyiodide Microspheres Highly Functional for the Photocatalytic Processes of Water Depuration
Published on: March 29, 2019
Oxidizing Americium(III) with Sodium Bismuthate in Acidic Aqueous Solutions
Natalie T Rice1, Elodie Dalodière1, Sara L Adelman1
1Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
Abstract:
Historic perspectives describing f-elements as being redox "inactive" are fading. Researchers continue to discover new oxidation states that are not as inaccessible as once assumed for actinides and lanthanides. Inspired by those contributions, we studied americium(III) oxidation in aqueous media under air using NaBiO3(. We identified selective oxidation of Am3+( to AmO22+( or AmO21+( could be achieved by changing the aqueous matrix identity. AmO22+( formed in H3PO4( (1 M) and AmO21+( formed in dilute HCl( (0.1 M). These americyl products were stable for weeks in solution. Also included is a method to recover 243Am from the americium and bismuth mixtures generated during these studies.
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