XPS determination of the oxidation state of 99Тс isotope absorbed on the surface of pirrhotite FenSn+1 and stibnite Sb2S3-Reference-Cited by-同舟云学术

XPS determination of the oxidation state of 99Тс isotope absorbed on the surface of pirrhotite FenSn+1 and stibnite Sb2S3

Published:2024-09-13 Issue:2 Volume:66 Page:
ISSN:0033-8311
Container-title:Радиохимия
language:
Short-container-title:Radiohimiâ

Author:

Maslakov K. I.¹²,Teterin A. Yu.²,Safonov A. V.³,Makarov A. V.³,Artemiev G. D.³,Teterin Yu. A.¹²,Dvoriak S. V.¹

Affiliation:

1. Lomonosov Moscow State University

2. NRC “Kurchatov Institute”

3. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

Abstract

Sorption of pertechnetate on pyrrhotite FenSn+1 (I) and stibnite Sb2S3 (II) from distilled water was evaluated. The distribution coefficients were found to be 185 and 223 cm3/g, respectively. The XPS study of the chemical state of 99Tc absorbed on the surface of pyrrhotite and stibnite from aqueous solution of potassium pertechnetate (KTcO4) was carried out. It was found that Tc(IV) ions are present mostly on the surface of the studied samples, their concentration was 5.7 times higher on the surface of pyrrhotite compared to that on the surface of stibnite. A 13% admixture of Tc(VII) ions on the surface of pyrrhotite was observed.

Publisher

The Russian Academy of Sciences

Reference52 articles.

1. Chatterjee S., Hall G.B., Jonson I.E., Du Y., Walter E.D., Washton N.M., Levitskaia T.G. // Inorg. Chem. Front. 2018. Vol. 5. P. 2081. https://doi.org/10.1039/C8QI00219C

2. Meena A.H., Arai Y. // Environ. Chem. Lett. 2017. Vol. 15. N 2. P. 241–263. https://doi.org/10.1007/s10311-017-0605-7

3. Garcia-Leon M. // J. Nucl. Radiochem. Sci. 2005. Vol. 6. N3. P. 253–259. https://doi.org/10.14494/jnrs2000.6.3_253

4. Попова Н.Н., Тананаев И.Г., Ровный С.И., Мясоедов Б.Ф. // Успехи химии. 2003. Т. 72, № 2. С. 115–137. https://doi.org/10.1070/RC2003v072n02ABEH000785

5. Makarov A.V., Safonov A.V., Konevnik Yu.V., Teterin Yu.A., Maslakov K.I., Teterin A. Yu. et al. // J. Hazard. Mater. 2021. Vol. 401. Article 123436 https://doi.org/10.1016/j.jhazmat.2020.123436