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Abstract

Summary

The article presents the results of a study of the strontium-90 and cesium-137 radionuclides sorption by the anatase nanopowder, synthesized by a chemical method using titanium tetraisopropoxide as a precursor in an alkaline medium. The anatase particles were studied before and after sorption by electron microscopy, X-ray phase analysis, thermographic analysis and infrared spectroscopy. To study the sorption efficiency, radioactive tracers of 137Cs and 90Sr were added to the simulated solution. The sorption characteristics (degree of sorption, %) and distribution coefficients (Kd, ml/g) of cesium-137 and strontium-90 ions between anatase and the simulated NPP wastewater are given. Was determined the sorbed forms of 90Sr and 137Cs on anatase (water-soluble, ion-exchange and fixed forms) by using sequential leaching procedure. These data illustrate a high sorption capacity of nanosized anatase towards strontium-90 (with a minimum percentage of the water-soluble form) and a weaker sorption capacity towards cesium-137 radionuclides. It can be used simultaneously with other selective radionuclide sorbents.

EAGE Publications BV © 2025 The Authors © European Association of Geoscientists and Engineers
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2025-04-14
2026-02-11

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Efficiency of Nano-Anatase (TiO2) Based Sorbents for 137Cs and 90Sr Removal from Simulated NPP Wastewaters Solutions
Conference Proceedings 2025, 1 (2025); https://doi.org/10.3997/2214-4609.2025510095
/content/papers/10.3997/2214-4609.2025510095
/content/papers/10.3997/2214-4609.2025510095
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