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Strippable Polymeric Nanocomposites Comprising “Green” Chelates, for the Removal of Heavy Metals and Radionuclides

The issue of heavy metal and radionuclide contamination is still causing a great deal of concern worldwide for environmental protection and industrial sites remediation. Various techniques have been developed for surface decontamination aiming for high decontamination factors (DF) and minimal enviro...

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Autores principales: Toader, Gabriela, Pulpea, Daniela, Rotariu, Traian, Diacon, Aurel, Rusen, Edina, Moldovan, Andreea, Podaru, Alice, Ginghină, Raluca, Alexe, Florentina, Iorga, Ovidiu, Bajenaru, Sorina Aurora, Ungureanu, Mihai, Dîrloman, Florin, Pulpea, Bogdan, Leonat, Lucia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8659526/
https://www.ncbi.nlm.nih.gov/pubmed/34883697
http://dx.doi.org/10.3390/polym13234194
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author Toader, Gabriela
Pulpea, Daniela
Rotariu, Traian
Diacon, Aurel
Rusen, Edina
Moldovan, Andreea
Podaru, Alice
Ginghină, Raluca
Alexe, Florentina
Iorga, Ovidiu
Bajenaru, Sorina Aurora
Ungureanu, Mihai
Dîrloman, Florin
Pulpea, Bogdan
Leonat, Lucia
author_facet Toader, Gabriela
Pulpea, Daniela
Rotariu, Traian
Diacon, Aurel
Rusen, Edina
Moldovan, Andreea
Podaru, Alice
Ginghină, Raluca
Alexe, Florentina
Iorga, Ovidiu
Bajenaru, Sorina Aurora
Ungureanu, Mihai
Dîrloman, Florin
Pulpea, Bogdan
Leonat, Lucia
author_sort Toader, Gabriela
collection PubMed
description The issue of heavy metal and radionuclide contamination is still causing a great deal of concern worldwide for environmental protection and industrial sites remediation. Various techniques have been developed for surface decontamination aiming for high decontamination factors (DF) and minimal environmental impact, but strippable polymeric nanocomposite coatings are some of the best candidates in this area. In this study, novel strippable coatings for heavy metal and radionuclides decontamination were developed based on the film-forming ability of polyvinyl alcohol, with the remarkable metal retention capacity of bentonite nanoclay, together with the chelating ability of sodium alginate and with “new-generation” “green” complexing agents: iminodisuccinic acid (IDS) and 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC). These environmentally friendly water-based decontamination solutions are capable of generating strippable polymeric films with optimized mechanical and thermal properties while exhibiting high decontamination efficiency (DF ≈ 95–98% for heavy metals tested on glass surface and DF ≈ 91–97% for radionuclides (241)Am, (90)Sr-Y and (137)Cs on metal, painted metal, plastic, and glass surfaces).
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spelling pubmed-86595262021-12-10 Strippable Polymeric Nanocomposites Comprising “Green” Chelates, for the Removal of Heavy Metals and Radionuclides Toader, Gabriela Pulpea, Daniela Rotariu, Traian Diacon, Aurel Rusen, Edina Moldovan, Andreea Podaru, Alice Ginghină, Raluca Alexe, Florentina Iorga, Ovidiu Bajenaru, Sorina Aurora Ungureanu, Mihai Dîrloman, Florin Pulpea, Bogdan Leonat, Lucia Polymers (Basel) Article The issue of heavy metal and radionuclide contamination is still causing a great deal of concern worldwide for environmental protection and industrial sites remediation. Various techniques have been developed for surface decontamination aiming for high decontamination factors (DF) and minimal environmental impact, but strippable polymeric nanocomposite coatings are some of the best candidates in this area. In this study, novel strippable coatings for heavy metal and radionuclides decontamination were developed based on the film-forming ability of polyvinyl alcohol, with the remarkable metal retention capacity of bentonite nanoclay, together with the chelating ability of sodium alginate and with “new-generation” “green” complexing agents: iminodisuccinic acid (IDS) and 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC). These environmentally friendly water-based decontamination solutions are capable of generating strippable polymeric films with optimized mechanical and thermal properties while exhibiting high decontamination efficiency (DF ≈ 95–98% for heavy metals tested on glass surface and DF ≈ 91–97% for radionuclides (241)Am, (90)Sr-Y and (137)Cs on metal, painted metal, plastic, and glass surfaces). MDPI 2021-11-30 /pmc/articles/PMC8659526/ /pubmed/34883697 http://dx.doi.org/10.3390/polym13234194 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Toader, Gabriela
Pulpea, Daniela
Rotariu, Traian
Diacon, Aurel
Rusen, Edina
Moldovan, Andreea
Podaru, Alice
Ginghină, Raluca
Alexe, Florentina
Iorga, Ovidiu
Bajenaru, Sorina Aurora
Ungureanu, Mihai
Dîrloman, Florin
Pulpea, Bogdan
Leonat, Lucia
Strippable Polymeric Nanocomposites Comprising “Green” Chelates, for the Removal of Heavy Metals and Radionuclides
title Strippable Polymeric Nanocomposites Comprising “Green” Chelates, for the Removal of Heavy Metals and Radionuclides
title_full Strippable Polymeric Nanocomposites Comprising “Green” Chelates, for the Removal of Heavy Metals and Radionuclides
title_fullStr Strippable Polymeric Nanocomposites Comprising “Green” Chelates, for the Removal of Heavy Metals and Radionuclides
title_full_unstemmed Strippable Polymeric Nanocomposites Comprising “Green” Chelates, for the Removal of Heavy Metals and Radionuclides
title_short Strippable Polymeric Nanocomposites Comprising “Green” Chelates, for the Removal of Heavy Metals and Radionuclides
title_sort strippable polymeric nanocomposites comprising “green” chelates, for the removal of heavy metals and radionuclides
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8659526/
https://www.ncbi.nlm.nih.gov/pubmed/34883697
http://dx.doi.org/10.3390/polym13234194
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