Nuclear Technology and Radiation Protection (Jan 2005)

X-ray photoelectron spectroscopy study of interaction of Np5+ with goethite α-FeOOH

  • Teterin Yury A.,
  • Kalmykov Stepan N.,
  • Novikov Alexander P.,
  • Sapozhnikov Yury A.,
  • Vukchevich Labud,
  • Teterin Anton YU.,
  • Maslakov Konstantin I.,
  • Utkin Igor O.,
  • Hasanova Ikule B.,
  • Shcherbina Natalia S.

DOI
https://doi.org/10.2298/NTRP0501038T
Journal volume & issue
Vol. 20, no. 1
pp. 38 – 44

Abstract

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Neptunyl NpO2n+ complexes on the surface of goethite α-(FeOOH) resulted from the interaction of neptunyl nitrate (NpO2NO3, 10-6 M) in the aqueous media with the background electrolyte (NaClO4) of ionic force 0.1 M (pH = 7.0 ± 0.2) were formed and studied with the X-ray photo electron spectroscopy. The X-ray photoelectron spectroscopy ionic and elemental quantitative analysis of the goethite and products of its interaction with neptunyl and plutonyl nitrates was carried out. It was established that during the studied neptunyl nitrate - goethite interaction Np4+ and Np6+ com pounds did not to form, while the complexes of neptunyl group NpO21+ containing Np5+ ions with oxygen, water and/or car bon ate ions in the equatorial planes did.

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