Rational Design of Polyamine-Based Cryogels for Metal Ion Sorption
Here we report the method of fabrication of supermacroporous monolith sorbents (cryogels) via covalent cross-linking of polyallylamine (PAA) with diglycidyl ether of 1,4-butandiol. Using comparative analysis of the permeability and sorption performance of the obtained PAA cryogels and earlier develo...
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MDPI AG
2020-10-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/25/20/4801 |
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| author | Irina Malakhova Yuliya Privar Yuliya Parotkina Aleksandr Mironenko Marina Eliseikina Denis Balatskiy Alexey Golikov Svetlana Bratskaya |
| author_facet | Irina Malakhova Yuliya Privar Yuliya Parotkina Aleksandr Mironenko Marina Eliseikina Denis Balatskiy Alexey Golikov Svetlana Bratskaya |
| author_sort | Irina Malakhova |
| collection | DOAJ |
| description | Here we report the method of fabrication of supermacroporous monolith sorbents (cryogels) via covalent cross-linking of polyallylamine (PAA) with diglycidyl ether of 1,4-butandiol. Using comparative analysis of the permeability and sorption performance of the obtained PAA cryogels and earlier developed polyethyleneimine (PEI) cryogels, we have demonstrated the advantages and disadvantages of these polymers as sorbents of heavy metal ions (Cu(II), Zn(II), Cd(II), and Ni(II)) in fixed-bed applications and as supermacroporous matrices for the fabrication of composite cryogels containing copper ferrocyanide (CuFCN) for cesium ion sorption. Applying the rate constant distribution (RCD) model to the kinetic curves of Cu(II) ion sorption on PAA and PEI cryogels, we have elucidated the difference in sorption/desorption rates and affinity constants of these materials and showed that physical sorption contributed to the Cu(II) uptake by PAA, but not to that by PEI cryogels. It was shown that PAA cryogels had significantly higher selectivity for Cu(II) sorption in the presence of Zn(II) and Cd(II) ions in comparison with that of PEI cryogels, while irreversible sorption of Co(II) ions by PEI can be used for the separation of Ni(II) and Co(II) ions. Using IR and Mössbauer spectroscopy, we have demonstrated that strong complexation of Cu(II) ions with PEI significantly affects the in situ formation of Cu(II) ferrocyanide nanosorbents leading to their inefficiency for Cs<sup>+</sup> ions selective uptake, whereas PAA cryogel was applicable for the fabrication of efficient monolith composites via the in situ formation of CuFCN or loading of ex situ formed CuFCN colloids. |
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| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T15:30:54Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-ca7dcacd0c3b4b08b8bc16b196a869582023-11-20T17:41:30ZengMDPI AGMolecules1420-30492020-10-012520480110.3390/molecules25204801Rational Design of Polyamine-Based Cryogels for Metal Ion SorptionIrina Malakhova0Yuliya Privar1Yuliya Parotkina2Aleksandr Mironenko3Marina Eliseikina4Denis Balatskiy5Alexey Golikov6Svetlana Bratskaya7Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, RussiaInstitute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, RussiaInstitute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, RussiaInstitute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, RussiaA.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, 17, Palchevskogo street, 690041 Vladivostok, RussiaInstitute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, RussiaInstitute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, RussiaInstitute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, RussiaHere we report the method of fabrication of supermacroporous monolith sorbents (cryogels) via covalent cross-linking of polyallylamine (PAA) with diglycidyl ether of 1,4-butandiol. Using comparative analysis of the permeability and sorption performance of the obtained PAA cryogels and earlier developed polyethyleneimine (PEI) cryogels, we have demonstrated the advantages and disadvantages of these polymers as sorbents of heavy metal ions (Cu(II), Zn(II), Cd(II), and Ni(II)) in fixed-bed applications and as supermacroporous matrices for the fabrication of composite cryogels containing copper ferrocyanide (CuFCN) for cesium ion sorption. Applying the rate constant distribution (RCD) model to the kinetic curves of Cu(II) ion sorption on PAA and PEI cryogels, we have elucidated the difference in sorption/desorption rates and affinity constants of these materials and showed that physical sorption contributed to the Cu(II) uptake by PAA, but not to that by PEI cryogels. It was shown that PAA cryogels had significantly higher selectivity for Cu(II) sorption in the presence of Zn(II) and Cd(II) ions in comparison with that of PEI cryogels, while irreversible sorption of Co(II) ions by PEI can be used for the separation of Ni(II) and Co(II) ions. Using IR and Mössbauer spectroscopy, we have demonstrated that strong complexation of Cu(II) ions with PEI significantly affects the in situ formation of Cu(II) ferrocyanide nanosorbents leading to their inefficiency for Cs<sup>+</sup> ions selective uptake, whereas PAA cryogel was applicable for the fabrication of efficient monolith composites via the in situ formation of CuFCN or loading of ex situ formed CuFCN colloids.https://www.mdpi.com/1420-3049/25/20/4801polyallylaminepolyethyleneiminecryogelsorption kineticssorption dynamicsmetal ions |
| spellingShingle | Irina Malakhova Yuliya Privar Yuliya Parotkina Aleksandr Mironenko Marina Eliseikina Denis Balatskiy Alexey Golikov Svetlana Bratskaya Rational Design of Polyamine-Based Cryogels for Metal Ion Sorption Molecules polyallylamine polyethyleneimine cryogel sorption kinetics sorption dynamics metal ions |
| title | Rational Design of Polyamine-Based Cryogels for Metal Ion Sorption |
| title_full | Rational Design of Polyamine-Based Cryogels for Metal Ion Sorption |
| title_fullStr | Rational Design of Polyamine-Based Cryogels for Metal Ion Sorption |
| title_full_unstemmed | Rational Design of Polyamine-Based Cryogels for Metal Ion Sorption |
| title_short | Rational Design of Polyamine-Based Cryogels for Metal Ion Sorption |
| title_sort | rational design of polyamine based cryogels for metal ion sorption |
| topic | polyallylamine polyethyleneimine cryogel sorption kinetics sorption dynamics metal ions |
| url | https://www.mdpi.com/1420-3049/25/20/4801 |
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