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Artículo

Boron Removal from Aqueous Solutions by Synthetic MgAlFe Mixed Oxides

Heredia, Angelica ConstanzaIcon ; de la Fuente García-Soto, M. M.; Narros Sierra, Adolfo; Mendoza, Sandra MarinaIcon ; Gómez Avila, JennyIcon ; Crivello, Mónica ElsieIcon
Fecha de publicación: 05/2019
Editorial: American Chemical Society
Revista: Industrial & Engineering Chemical Research
ISSN: 0888-5885
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Química Inorgánica y Nuclear

Resumen

The boron removal capacity from an aqueous solutionusing MgAlFe mixed oxides from layered double hydroxides (LDH) wasstudied. They were synthesized by the coprecipitation method at 70 °Cand were characterized as potential filter materials. The Fe3+ analyzed byX-ray photoelectron spectroscopy and UV−visible diffuse reflectanceshowed their tetrahedral and octahedral coordination. Scanning electronmicroscopy micrographs and thermogravimetric and differential scanningcalorimetry analysis evidenced the presence of clusters and particlesaggregates and decreased dehydroxylation temperature when the ironcontent increased. Mixed oxides and boron solution in a ratio of 20:1Mg/B were put in a batch reactor at different contact times. The borateremoval process was due to the memory effect of the mixed oxides and superficial adsorption by electrostatic attraction. Thisfact is directly related to the specific surface area, Fe content, and surface charge. The maximum boron removals were achievedwith the CS25 and CS50 samples with values higher than 85%.
Palabras clave: BORON , REMOVAL , MGALFE , MIXED OXIDES
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/111268
URL: http://pubs.acs.org/doi/10.1021/acs.iecr.9b02259
DOI: http://dx.doi.org/10.1021/acs.iecr.9b02259
Colecciones
Articulos(CCT - SANTA FE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Citación
Heredia, Angelica Constanza; de la Fuente García-Soto, M. M.; Narros Sierra, Adolfo; Mendoza, Sandra Marina; Gómez Avila, Jenny; et al.; Boron Removal from Aqueous Solutions by Synthetic MgAlFe Mixed Oxides; American Chemical Society; Industrial & Engineering Chemical Research; 58; 23; 5-2019; 9931–9939
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