NT & RP Journal
X-RAY PHOTOELECTRON SPECTROSCOPY STUDY OF INTERACTION OF Np5+ WITH GOETHITE a-FeOOH
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Vol. XX, No. 1, Pp. 1-90
June 2005
UDC 621.039+614.876:504.06
YU ISSN 1451-3994

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Pages: 38 - 44

Authors: Yury A. TETERIN, Stepan N. KALMYKOV, Alexander P. NOVIKOV, Yury A. SAPOZHNIKOV, Labud VUKCHEVICH, Anton Yu. TETERIN, Konstantin I. MASLAKOV, Igor O. UTKIN, Ikule B. HASANOVA, and Natalia S. SHCHERBINA

Abstract

Neptunyl NpO2n+ complexes on the surface of goethite a-(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 photoelectron 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+ compounds did not to form, while the complexes of neptunyl group NpO21+ containing Np5+ ions with oxygen, water and/or carbonate ions in the equatorial planes did.

Key words: goethite, X-ray photoelectron spectroscopy, actinide, neptunyl

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