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Article

New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for 137Cs Recovery from Various Composition Solutions

by
Iuliia G. Shibetskaia
1,
Victoria A. Razina
1,
Nikolay A. Bezhin
1,*,
Eduard A. Tokar’
2,3,
Vitaly V. Milyutin
4,
Natalya A. Nekrasova
4,
Victoria S. Yankovskaya
5 and
Ivan G. Tananaev
1
1
Research Laboratory of Radioecology and Marine Radiochemistry, Sevastopol State University, Universitetskaya Str., 33, 299053 Sevastopol, Russia
2
Department of Nuclear Technologies, Far Eastern Federal University, Sukhanov Str., 8, 690091 Vladivostok, Russia
3
Laboratory of Fundamental and Applied Chemistry, Sakhalin State University, Lenina Str., 290, 693000 Yuzhno-Sakhalinsk, Russia
4
Laboratory of Chromatography of Radioactive Elements, Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31 Leninsky Prospect, 4, 119071 Moscow, Russia
5
Sanitary and Hygienic Laboratory, Center for Hygiene and Epidemiology, Kommunisticheskaya Str., 10, 299014 Sevastopol, Russia
*
Author to whom correspondence should be addressed.
Appl. Sci. 2024, 14(2), 627; https://doi.org/10.3390/app14020627
Submission received: 24 December 2023 / Revised: 3 January 2024 / Accepted: 9 January 2024 / Published: 11 January 2024
(This article belongs to the Special Issue Application of Carbon Fibers in Adsorption)
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Featured Application

New sorbents based on polyacrylonitrile fiber and transition metal ferrocyanides can be used for 137Cs selective sorption from technological solutions (liquid low- and intermediate-level waste; seawater containing radioactive waste; wastewater), as well as from natural waters (fresh and saltwater) with the purpose of radioecological monitoring.

Abstract

For the first time, new sorbents based on polyacrylonitrile (PAN) fiber and transition metal ferrocyanides were obtained. The main difference between the obtained sorbents and the existing ones is the stage of preliminary preparation of the initial support by converting it into the forms PAN-Fe(OH)3 or PAN-MnO2, due to which additional ion exchange groups (carboxyl, carbonyl, etc.) are formed, which increases the amount of ferrocyanide fixed to the support. The best components and conditions for the synthesis of new sorbents were determined (concentration (0.1–0.2 mol/L), as well as pH (1 for sorbents based on PAN-Fe(OH)3, and 1–5—PAN-MnO2) of potassium ferrocyanide solution, concentration of transition metal salts (0.02 mol/L), temperature conditions). The influence of the studied solution composition (pH, concentration of Na+, K+, NH4+ ions) on the cesium distribution coefficients during its recovery by the obtained sorbents was assessed. The possibility of cesium recovery from solutions with pH 1–9 containing macro quantities of cations was demonstrated. The sorbents derived were characterized by modern structural methods such as infrared spectroscopy, thermogravimetric analysis, and scanning electron microscopy with EDS analysis. A study of the trace amount sorption of 137Cs was carried out in comparison with commercially available highly efficient sorbents (FNS-10 and Termoksid-35), and it was shown that the resulting sorbents are not inferior to industrial ferrocyanide sorbents and can be used for 137Cs selective sorption from technological solutions and natural waters.
Keywords: cesium; 137Cs; sorption; polyacrylonitrile fiber; transition metal ferrocyanides cesium; 137Cs; sorption; polyacrylonitrile fiber; transition metal ferrocyanides

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MDPI and ACS Style

Shibetskaia, I.G.; Razina, V.A.; Bezhin, N.A.; Tokar’, E.A.; Milyutin, V.V.; Nekrasova, N.A.; Yankovskaya, V.S.; Tananaev, I.G. New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for 137Cs Recovery from Various Composition Solutions. Appl. Sci. 2024, 14, 627. https://doi.org/10.3390/app14020627

AMA Style

Shibetskaia IG, Razina VA, Bezhin NA, Tokar’ EA, Milyutin VV, Nekrasova NA, Yankovskaya VS, Tananaev IG. New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for 137Cs Recovery from Various Composition Solutions. Applied Sciences. 2024; 14(2):627. https://doi.org/10.3390/app14020627

Chicago/Turabian Style

Shibetskaia, Iuliia G., Victoria A. Razina, Nikolay A. Bezhin, Eduard A. Tokar’, Vitaly V. Milyutin, Natalya A. Nekrasova, Victoria S. Yankovskaya, and Ivan G. Tananaev. 2024. "New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for 137Cs Recovery from Various Composition Solutions" Applied Sciences 14, no. 2: 627. https://doi.org/10.3390/app14020627

APA Style

Shibetskaia, I. G., Razina, V. A., Bezhin, N. A., Tokar’, E. A., Milyutin, V. V., Nekrasova, N. A., Yankovskaya, V. S., & Tananaev, I. G. (2024). New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for 137Cs Recovery from Various Composition Solutions. Applied Sciences, 14(2), 627. https://doi.org/10.3390/app14020627

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