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

dc.creatorHeredia, Angélica
dc.creatorGómez Ávila, Jenny
dc.creatorVinuesa, Ariel
dc.creatorSaux, Clara
dc.creatorMendoza, Sandra
dc.creatorGaray, Fernando
dc.creatorCirivello, Mónica
dc.date2020-12-15T12:52:43Z
dc.date2020-12-15T12:52:43Z
dc.date2019-05-09
dc.date.accessioned2023-08-31T14:13:00Z
dc.date.available2023-08-31T14:13:00Z
dc.identifierhttp://hdl.handle.net/20.500.12272/4649
dc.identifierhttps://doi.org/10.1007/s10450-019-00109-2
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8546807
dc.descriptionLayered 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.
dc.descriptionFil: CITeQ-CONICET, Facultad Regional Córdoba, Universidad Tecnológica Nacional, Maestro Marcelo López esq. Cruz Roja Argentina, Ciudad Universitaria, X5016ZAA, Córdoba, Argentina Angélica Heredia, Jenny Gómez Avila, Ariel Vinuesa, Clara Saux & Mónica Crivello CONICET, Facultad Regional Reconquista, Universidad Tecnológica Nacional, Reconquista, Argentina Sandra M. Mendoza INFIQC-CONICET, Departamento de Físico Química, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Pabellón Argentina, Ciudad Universitaria, X5000HUA, Córdoba, Argentina Fernando Garay
dc.descriptionPeer Reviewed
dc.formattext/html
dc.languageeng
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightsN/A
dc.subjectArsenic Mixed oxides Natural zeolites Adsorption Filter
dc.titleCompared arsenic removal from aqueous solutions by synthetic mixed oxides and modified natural zeolites
dc.typeinfo:eu-repo/semantics/article
dc.typepublisherVersion


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