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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...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7587524/ https://www.ncbi.nlm.nih.gov/pubmed/33086660 http://dx.doi.org/10.3390/molecules25204801 |
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author | Malakhova, Irina Privar, Yuliya Parotkina, Yuliya Mironenko, Aleksandr Eliseikina, Marina Balatskiy, Denis Golikov, Alexey Bratskaya, Svetlana |
author_facet | Malakhova, Irina Privar, Yuliya Parotkina, Yuliya Mironenko, Aleksandr Eliseikina, Marina Balatskiy, Denis Golikov, Alexey Bratskaya, Svetlana |
author_sort | Malakhova, Irina |
collection | PubMed |
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(+) 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. |
format | Online Article Text |
id | pubmed-7587524 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-75875242020-10-29 Rational Design of Polyamine-Based Cryogels for Metal Ion Sorption Malakhova, Irina Privar, Yuliya Parotkina, Yuliya Mironenko, Aleksandr Eliseikina, Marina Balatskiy, Denis Golikov, Alexey Bratskaya, Svetlana Molecules Article 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(+) 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. MDPI 2020-10-19 /pmc/articles/PMC7587524/ /pubmed/33086660 http://dx.doi.org/10.3390/molecules25204801 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Malakhova, Irina Privar, Yuliya Parotkina, Yuliya Mironenko, Aleksandr Eliseikina, Marina Balatskiy, Denis Golikov, Alexey Bratskaya, Svetlana Rational Design of Polyamine-Based Cryogels for Metal Ion Sorption |
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 | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7587524/ https://www.ncbi.nlm.nih.gov/pubmed/33086660 http://dx.doi.org/10.3390/molecules25204801 |
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