Compared arsenic removal from aqueous solutions by synthetic mixed oxides and modified natural zeolites

Layered Double Hydroxides of Mg–Al–Fe and their mixed metallic oxides of high specific surface area were synthesized by the coprecipitation method. A natural zeolite from a regional quarry with high clinoptilolite content was conditioned and modified. Initially, an acid treatment was applied and sub...

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Autores principales: Heredia, Angélica, Gómez Ávila, Jenny, Vinuesa, Ariel, Saux, Clara, Mendoza, Sandra, Garay, Fernando, Cirivello, Mónica
Formato: Artículo publisherVersion
Lenguaje:Inglés
Publicado: 2020
Materias:
Arsenic Mixed oxides Natural zeolites Adsorption Filter
Acceso en línea:http://hdl.handle.net/20.500.12272/4649
https://doi.org/10.1007/s10450-019-00109-2
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-4649
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic Arsenic Mixed oxides Natural zeolites Adsorption Filter
spellingShingle Arsenic Mixed oxides Natural zeolites Adsorption Filter
Heredia, Angélica
Gómez Ávila, Jenny
Vinuesa, Ariel
Saux, Clara
Mendoza, Sandra
Garay, Fernando
Cirivello, Mónica
Compared arsenic removal from aqueous solutions by synthetic mixed oxides and modified natural zeolites
topic_facet Arsenic Mixed oxides Natural zeolites Adsorption Filter
description Layered Double Hydroxides of Mg–Al–Fe and their mixed metallic oxides of high specific surface area were synthesized by the coprecipitation method. A natural zeolite from a regional quarry with high clinoptilolite content was conditioned and modified. Initially, an acid treatment was applied and subsequently Fe(III) was incorporated by the wet impregnation method. Then the prepared solid materials were characterized by XRD, N2 adsorption–desorption at 77 K, SEM, DRS UV–Vis, and MP-AES to determine their physicochemical properties. Finally, the solid materials were evaluated as adsorbents for arsenic removal in water. The tracking of As and its species concentration at trace levels was carried out by cathodic stripping Square-wave voltammetry, which has proved to be a highly selective and sensitive electrochemical method. High levels of effectiveness in terms of removal were achieved, particularly with the natural zeolites and mixed oxides of highest iron content.
format Artículo
publisherVersion
author Heredia, Angélica
Gómez Ávila, Jenny
Vinuesa, Ariel
Saux, Clara
Mendoza, Sandra
Garay, Fernando
Cirivello, Mónica
author_facet Heredia, Angélica
Gómez Ávila, Jenny
Vinuesa, Ariel
Saux, Clara
Mendoza, Sandra
Garay, Fernando
Cirivello, Mónica
author_sort Heredia, Angélica
title Compared arsenic removal from aqueous solutions by synthetic mixed oxides and modified natural zeolites
title_short Compared arsenic removal from aqueous solutions by synthetic mixed oxides and modified natural zeolites
title_full Compared arsenic removal from aqueous solutions by synthetic mixed oxides and modified natural zeolites
title_fullStr Compared arsenic removal from aqueous solutions by synthetic mixed oxides and modified natural zeolites
title_full_unstemmed Compared arsenic removal from aqueous solutions by synthetic mixed oxides and modified natural zeolites
title_sort compared arsenic removal from aqueous solutions by synthetic mixed oxides and modified natural zeolites
publishDate 2020
url http://hdl.handle.net/20.500.12272/4649
https://doi.org/10.1007/s10450-019-00109-2
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