Abstract
The effect of γ-radiation on the extraction properties of two functionalized calixarenes (p-tert-butyl-thiacalix[4]arene and p-tert-butylcalix[8]arene) is studied. The most characteristic products of the irradiated extractants interaction with diluent are identified by mass spectrometry. Extraction ability of studied calixarenes towards cesium and americium before and after irradiation is evaluated. Quantitative analysis of chloride and sulfate ions after irradiation is performed to estimate the radiological degradation degree of components. Irradiation has different effect on p-tert-butyl-thiacalix[4]arene and p-tert-butylcalix[8]arene extraction ability towards americium, which may be due to the nature and extraction ability of radiolysis products, and practically does not affect cesium extraction.
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Acknowledgements
The authors are grateful to the staff of the PA “Mayak”, namely, N. P. Starovoytov, V. A. Kazakov and V. A. Dudkin for their help in conducting experiments on irradiation of the extractants. Mass spectrometry analysis was performed at the Center for Chemical Analysis and Materials Research of Research park of St.-Petersburg State University.
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Smirnov, I.V., Stepanova, E.S., Karavan, M.D. et al. γ-Radiolysis of functionalized calixarenes and its effect on cesium and americium extraction. J Radioanal Nucl Chem 322, 1931–1939 (2019). https://doi.org/10.1007/s10967-019-06880-4
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DOI: https://doi.org/10.1007/s10967-019-06880-4