New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for <sup>137</sup>Cs Recovery from Various Composition Solutions
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)&...
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MDPI AG
2024-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/14/2/627 |
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| author | Iuliia G. Shibetskaia Victoria A. Razina Nikolay A. Bezhin Eduard A. Tokar’ Vitaly V. Milyutin Natalya A. Nekrasova Victoria S. Yankovskaya Ivan G. Tananaev |
| author_facet | Iuliia G. Shibetskaia Victoria A. Razina Nikolay A. Bezhin Eduard A. Tokar’ Vitaly V. Milyutin Natalya A. Nekrasova Victoria S. Yankovskaya Ivan G. Tananaev |
| author_sort | Iuliia G. Shibetskaia |
| collection | DOAJ |
| description | 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)<sub>3</sub> or PAN-MnO<sub>2</sub>, 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)<sub>3</sub>, and 1–5—PAN-MnO<sub>2</sub>) 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<sup>+</sup>, K<sup>+</sup>, NH<sub>4</sub><sup>+</sup> 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 <sup>137</sup>Cs 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 <sup>137</sup>Cs selective sorption from technological solutions and natural waters. |
| first_indexed | 2024-03-08T09:58:40Z |
| format | Article |
| id | doaj.art-46998718c8cd48c1904e5a137aed3554 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-08T09:58:40Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-46998718c8cd48c1904e5a137aed35542024-01-29T13:43:14ZengMDPI AGApplied Sciences2076-34172024-01-0114262710.3390/app14020627New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for <sup>137</sup>Cs Recovery from Various Composition SolutionsIuliia G. Shibetskaia0Victoria A. Razina1Nikolay A. Bezhin2Eduard A. Tokar’3Vitaly V. Milyutin4Natalya A. Nekrasova5Victoria S. Yankovskaya6Ivan G. Tananaev7Research Laboratory of Radioecology and Marine Radiochemistry, Sevastopol State University, Universitetskaya Str., 33, 299053 Sevastopol, RussiaResearch Laboratory of Radioecology and Marine Radiochemistry, Sevastopol State University, Universitetskaya Str., 33, 299053 Sevastopol, RussiaResearch Laboratory of Radioecology and Marine Radiochemistry, Sevastopol State University, Universitetskaya Str., 33, 299053 Sevastopol, RussiaDepartment of Nuclear Technologies, Far Eastern Federal University, Sukhanov Str., 8, 690091 Vladivostok, RussiaLaboratory of Chromatography of Radioactive Elements, Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31 Leninsky Prospect, 4, 119071 Moscow, RussiaLaboratory of Chromatography of Radioactive Elements, Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31 Leninsky Prospect, 4, 119071 Moscow, RussiaSanitary and Hygienic Laboratory, Center for Hygiene and Epidemiology, Kommunisticheskaya Str., 10, 299014 Sevastopol, RussiaResearch Laboratory of Radioecology and Marine Radiochemistry, Sevastopol State University, Universitetskaya Str., 33, 299053 Sevastopol, RussiaFor 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)<sub>3</sub> or PAN-MnO<sub>2</sub>, 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)<sub>3</sub>, and 1–5—PAN-MnO<sub>2</sub>) 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<sup>+</sup>, K<sup>+</sup>, NH<sub>4</sub><sup>+</sup> 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 <sup>137</sup>Cs 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 <sup>137</sup>Cs selective sorption from technological solutions and natural waters.https://www.mdpi.com/2076-3417/14/2/627cesium<sup>137</sup>Cssorptionpolyacrylonitrile fibertransition metal ferrocyanides |
| spellingShingle | Iuliia G. Shibetskaia Victoria A. Razina Nikolay A. Bezhin Eduard A. Tokar’ Vitaly V. Milyutin Natalya A. Nekrasova Victoria S. Yankovskaya Ivan G. Tananaev New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for <sup>137</sup>Cs Recovery from Various Composition Solutions Applied Sciences cesium <sup>137</sup>Cs sorption polyacrylonitrile fiber transition metal ferrocyanides |
| title | New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for <sup>137</sup>Cs Recovery from Various Composition Solutions |
| title_full | New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for <sup>137</sup>Cs Recovery from Various Composition Solutions |
| title_fullStr | New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for <sup>137</sup>Cs Recovery from Various Composition Solutions |
| title_full_unstemmed | New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for <sup>137</sup>Cs Recovery from Various Composition Solutions |
| title_short | New Sorbents Based on Polyacrylonitrile Fiber and Transition Metal Ferrocyanides for <sup>137</sup>Cs Recovery from Various Composition Solutions |
| title_sort | new sorbents based on polyacrylonitrile fiber and transition metal ferrocyanides for sup 137 sup cs recovery from various composition solutions |
| topic | cesium <sup>137</sup>Cs sorption polyacrylonitrile fiber transition metal ferrocyanides |
| url | https://www.mdpi.com/2076-3417/14/2/627 |
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