Artículo
Compared arsenic removal from aqueous solutions by synthetic mixed oxides and modified natural zeolites
Heredia, Angelica Constanza
; Gómez Avila, Jenny
; Vinuesa, Ariel José
; Saux, Clara
; Mendoza, Sandra Marina
; Garay, Fernando Sebastian
; Crivello, Mónica Elsie
Fecha de publicación:
09/10/2019
Editorial:
Springer
Revista:
Adsorption
ISSN:
0929-5607
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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.
Palabras clave:
ADSORPTION
,
ARSENIC
,
FILTER
,
MIXED OXIDES
,
NATURAL ZEOLITES
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - SANTA FE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Articulos(CITEQ)
Articulos de CENTRO DE INVESTIGACION Y TECNOLOGIA QUIMICA
Articulos de CENTRO DE INVESTIGACION Y TECNOLOGIA QUIMICA
Articulos(INFIQC)
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Citación
Heredia, Angelica Constanza; Gómez Avila, Jenny; Vinuesa, Ariel José; Saux, Clara; Mendoza, Sandra Marina; et al.; Compared arsenic removal from aqueous solutions by synthetic mixed oxides and modified natural zeolites; Springer; Adsorption; 25; 7; 9-10-2019; 1425-1436
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