Effect of PAA-coated magnetic nanoparticles on the performance of PVA-based hydrogels developed to be used as environmental remediation devices

In the present work, the effect of the incorporation of polyacrylic acid (PAA)–coated magnetic nanoparticles (MNPs) on the performance of polyvinyl alcohol (PVA)–based hydrogels for water remediation was studied. Ferrogels from PVA and PAA-coated MNPs were prepared through the ecocompatible freezing...

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Autores principales: Sánchez, Laura Mabel, Actis, Daniel Guillermo, Gonzalez, Jimena Soledad, Mendoza Zélis, Pedro, Alvarez, Vera Alejandra
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Ciencias Exactas
Física
Magnetic hydrogel
Ferrogel
Iron oxide nanoparticles
Nanocomposite
Polyvinyl alcohol
Polyacrylic acid
Environmental remediation
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/132010
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-132010
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Magnetic hydrogel
Ferrogel
Iron oxide nanoparticles
Nanocomposite
Polyvinyl alcohol
Polyacrylic acid
Environmental remediation
spellingShingle Ciencias Exactas
Física
Magnetic hydrogel
Ferrogel
Iron oxide nanoparticles
Nanocomposite
Polyvinyl alcohol
Polyacrylic acid
Environmental remediation
Sánchez, Laura Mabel
Actis, Daniel Guillermo
Gonzalez, Jimena Soledad
Mendoza Zélis, Pedro
Alvarez, Vera Alejandra
Effect of PAA-coated magnetic nanoparticles on the performance of PVA-based hydrogels developed to be used as environmental remediation devices
topic_facet Ciencias Exactas
Física
Magnetic hydrogel
Ferrogel
Iron oxide nanoparticles
Nanocomposite
Polyvinyl alcohol
Polyacrylic acid
Environmental remediation
description In the present work, the effect of the incorporation of polyacrylic acid (PAA)–coated magnetic nanoparticles (MNPs) on the performance of polyvinyl alcohol (PVA)–based hydrogels for water remediation was studied. Ferrogels from PVA and PAA-coated MNPs were prepared through the ecocompatible freezing–thawing physical cross-linking method, and then they were completely characterized. Two different lab-made PAA-coated iron oxide MNPs, characterized in a previous work, were prepared by coprecipitation method from two different low PAA molecular weights, Mw 1800 g/mol and 5000 g/mol. The effect of MNP content and the PAA Mw on ferrogel final properties was determined. In addition, adsorption of methylene blue (MB) and cadmium (Cd⁺²) was carried out to analyze the possible application of the developed materials as environmental remediation devices. The capture of a ferrogel by an external field occurs due to the force that the field gradient exerts on single magnetic particles, which is then transferred onto the polymer matrix. This force was measured as a function of the distance to a permanent magnet, and the condition to magnetically recover the sample was established. The results obtained demonstrated that the ferrogels presented in this work are able to adsorb heavy metals and then be magnetically separated.
format Articulo
Articulo
author Sánchez, Laura Mabel
Actis, Daniel Guillermo
Gonzalez, Jimena Soledad
Mendoza Zélis, Pedro
Alvarez, Vera Alejandra
author_facet Sánchez, Laura Mabel
Actis, Daniel Guillermo
Gonzalez, Jimena Soledad
Mendoza Zélis, Pedro
Alvarez, Vera Alejandra
author_sort Sánchez, Laura Mabel
title Effect of PAA-coated magnetic nanoparticles on the performance of PVA-based hydrogels developed to be used as environmental remediation devices
title_short Effect of PAA-coated magnetic nanoparticles on the performance of PVA-based hydrogels developed to be used as environmental remediation devices
title_full Effect of PAA-coated magnetic nanoparticles on the performance of PVA-based hydrogels developed to be used as environmental remediation devices
title_fullStr Effect of PAA-coated magnetic nanoparticles on the performance of PVA-based hydrogels developed to be used as environmental remediation devices
title_full_unstemmed Effect of PAA-coated magnetic nanoparticles on the performance of PVA-based hydrogels developed to be used as environmental remediation devices
title_sort effect of paa-coated magnetic nanoparticles on the performance of pva-based hydrogels developed to be used as environmental remediation devices
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/132010
work_keys_str_mv AT sanchezlauramabel effectofpaacoatedmagneticnanoparticlesontheperformanceofpvabasedhydrogelsdevelopedtobeusedasenvironmentalremediationdevices
AT actisdanielguillermo effectofpaacoatedmagneticnanoparticlesontheperformanceofpvabasedhydrogelsdevelopedtobeusedasenvironmentalremediationdevices
AT gonzalezjimenasoledad effectofpaacoatedmagneticnanoparticlesontheperformanceofpvabasedhydrogelsdevelopedtobeusedasenvironmentalremediationdevices
AT mendozazelispedro effectofpaacoatedmagneticnanoparticlesontheperformanceofpvabasedhydrogelsdevelopedtobeusedasenvironmentalremediationdevices
AT alvarezveraalejandra effectofpaacoatedmagneticnanoparticlesontheperformanceofpvabasedhydrogelsdevelopedtobeusedasenvironmentalremediationdevices
bdutipo_str Repositorios
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