Enhanced adsorption to safe immobilization of cesium radionuclides

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-10-04 DOI:10.1007/s10967-024-09779-x

Andrei Ivanets, Irina Shashkova, Natalja Kitikova, Anastasiya Dzikaya, Natalia Drozdova, Ekaterina Zaruba-Venhlinskaya, Artsiom Radkevich

引用次数: 0

Abstract

Radionuclides removal and immobilization are crucial issue for liquid radioactive waste management. Zr-Ca-Mg and Ti-Ca-Mg phosphates performance for Cs⁺ ions adsorption and immobilization was studied. Adsorption of stable Cs⁺ on composite phosphates was well described by Sips model and pseudo-second order kinetics. Zr-Ca-Mg samples had the highest Cs⁺ adsorption capacity (< 2.40 mmol/g) compared to Ti-Ca-Mg phosphates (< 2.18 mmol/g). The samples with high Ti and Zr content were characterized by enhanced efficiency of ¹³⁷Cs radionuclide adsorption (K_d > 10⁴ mL/g) in wide range pH of 4.0–10.0. Metal phosphates calcined at 1000 °C shown the safe immobilization of Cs⁺ ions.

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.