Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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I. F. Mironyuk¹, I. M. Mykytyn¹, O. Ye. Kaglyan², D. I. Gudkov², H. V. Vasylyeva<sup>3,*

1</sup> Department of Chemistry, Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
² Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine
³ Department of Theoretical Physics, Uzhgorod National University, Uzhgorod, Ukraine

^*Corresponding author. E-mail address: h.v.vasylyeva@hotmail.com

Abstract: This paper describes the testing of titanium dioxide, chemically modified by arsenate groups, as an adsorbent of ⁹⁰Sr from the component of aquatic ecosystems of the Chornobyl exclusion zone. It is shown, that the chemical composition of the aquatic environment impacts ⁹⁰Sr adsorption. The 4As-TiO₂ adsorbent reduces the activity of some samples by almost 100 %, which indicates selectivity and high adsorption capacity of the adsorbent in relation to ⁹⁰Sr. In some experiments, this value reached 100 %, and the activity was reduced to the level of the maximum permissible ⁹⁰Sr concentration.

Keywords: Chornobyl exclusion zone, fish, scale, specific activity, ⁹⁰Sr, ТіО₂.

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