Boron Removal from Aqueous Solutions by Synthetic MgAlFe Mixed Oxides

The boron removal capacity from an aqueous solution using MgAlFe mixed oxides from layered double hydroxides (LDH) was studied. They were synthesized by the coprecipitation method at 70 °C and were characterized as potential filter materials. The Fe3+ analyzed by X-ray photoelectron spectroscopy and...

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Autores principales: Heredia, Angélica, M. de la Fuente Garcia - Soto, Narros Sierra, Adolfo, Mendoza, Sandra, Gómez Ávila, Jenny, Cirivello, Mónica
Formato: Artículo publisherVersion
Lenguaje:Inglés
Inglés
Publicado: 2020
Materias:
boron removal; double hydroxides
Acceso en línea:http://hdl.handle.net/20.500.12272/4650
https://pubs.acs.org/doi/abs/10.1021/acs.iecr.9b02259
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-4650
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
Inglés
topic boron removal; double hydroxides
spellingShingle boron removal; double hydroxides
Heredia, Angélica
M. de la Fuente Garcia - Soto
Narros Sierra, Adolfo
Mendoza, Sandra
Gómez Ávila, Jenny
Cirivello, Mónica
Boron Removal from Aqueous Solutions by Synthetic MgAlFe Mixed Oxides
topic_facet boron removal; double hydroxides
description The boron removal capacity from an aqueous solution using MgAlFe mixed oxides from layered double hydroxides (LDH) was studied. They were synthesized by the coprecipitation method at 70 °C and were characterized as potential filter materials. The Fe3+ analyzed by X-ray photoelectron spectroscopy and UV–visible diffuse reflectance showed their tetrahedral and octahedral coordination. Scanning electron microscopy micrographs and thermogravimetric and differential scanning calorimetry analysis evidenced the presence of clusters and particles aggregates and decreased dehydroxylation temperature when the iron content increased. Mixed oxides and boron solution in a ratio of 20:1 Mg/B were put in a batch reactor at different contact times. The borate removal process was due to the memory effect of the mixed oxides and superficial adsorption by electrostatic attraction. This fact is directly related to the specific surface area, Fe content, and surface charge. The maximum boron removals were achieved with the CS25 and CS50 samples with values higher than 85%.
format Artículo
publisherVersion
author Heredia, Angélica
M. de la Fuente Garcia - Soto
Narros Sierra, Adolfo
Mendoza, Sandra
Gómez Ávila, Jenny
Cirivello, Mónica
author_facet Heredia, Angélica
M. de la Fuente Garcia - Soto
Narros Sierra, Adolfo
Mendoza, Sandra
Gómez Ávila, Jenny
Cirivello, Mónica
author_sort Heredia, Angélica
title Boron Removal from Aqueous Solutions by Synthetic MgAlFe Mixed Oxides
title_short Boron Removal from Aqueous Solutions by Synthetic MgAlFe Mixed Oxides
title_full Boron Removal from Aqueous Solutions by Synthetic MgAlFe Mixed Oxides
title_fullStr Boron Removal from Aqueous Solutions by Synthetic MgAlFe Mixed Oxides
title_full_unstemmed Boron Removal from Aqueous Solutions by Synthetic MgAlFe Mixed Oxides
title_sort boron removal from aqueous solutions by synthetic mgalfe mixed oxides
publishDate 2020
url http://hdl.handle.net/20.500.12272/4650
https://pubs.acs.org/doi/abs/10.1021/acs.iecr.9b02259
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