Sorption and chemical stability of As(V) onto tin doped goethites

The effect of Sn(IV)-for-Fe(III) substitution on the adsorption of As(V) and on the reactivity in acid media were studied for pure and Sn-substituted goethites. Adsorption isotherms indicated that the As adsorption increases in the Sn-goethites almost duplicating the value of pure goethite. Dissolut...

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Autores principales: Tufo, Ana Elisabeth, Sileo, Elsa Ester
Publicado: 2014
Materias:
Adsorption
Arsenic
Dissolution
Acid media
Sigmoidal curves
Tin
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97811380_v_n_p714_Larralde
http://hdl.handle.net/20.500.12110/paper_97811380_v_n_p714_Larralde
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_97811380_v_n_p714_Larralde2023-06-08T16:37:17Z Sorption and chemical stability of As(V) onto tin doped goethites Tufo, Ana Elisabeth Sileo, Elsa Ester Adsorption Arsenic Dissolution Acid media Sigmoidal curves Tin The effect of Sn(IV)-for-Fe(III) substitution on the adsorption of As(V) and on the reactivity in acid media were studied for pure and Sn-substituted goethites. Adsorption isotherms indicated that the As adsorption increases in the Sn-goethites almost duplicating the value of pure goethite. Dissolution experiments showed sigmoidal curves with K rate values that decreased with the Sn(IV) incorporation. The results indicate that the Sn-for-Fe substitution enhances the adsorption of As(V) and stabilizes the oxide towards dissolution in acid media, confirming the usefulness of Sn-goethites in removal technologies. © 2014 Taylor & Francis Group. Fil:Tufo, A.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sileo, E.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97811380_v_n_p714_Larralde http://hdl.handle.net/20.500.12110/paper_97811380_v_n_p714_Larralde
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Adsorption
Arsenic
Dissolution
Acid media
Sigmoidal curves
Tin
spellingShingle Adsorption
Arsenic
Dissolution
Acid media
Sigmoidal curves
Tin
Tufo, Ana Elisabeth
Sileo, Elsa Ester
Sorption and chemical stability of As(V) onto tin doped goethites
topic_facet Adsorption
Arsenic
Dissolution
Acid media
Sigmoidal curves
Tin
description The effect of Sn(IV)-for-Fe(III) substitution on the adsorption of As(V) and on the reactivity in acid media were studied for pure and Sn-substituted goethites. Adsorption isotherms indicated that the As adsorption increases in the Sn-goethites almost duplicating the value of pure goethite. Dissolution experiments showed sigmoidal curves with K rate values that decreased with the Sn(IV) incorporation. The results indicate that the Sn-for-Fe substitution enhances the adsorption of As(V) and stabilizes the oxide towards dissolution in acid media, confirming the usefulness of Sn-goethites in removal technologies. © 2014 Taylor & Francis Group.
author Tufo, Ana Elisabeth
Sileo, Elsa Ester
author_facet Tufo, Ana Elisabeth
Sileo, Elsa Ester
author_sort Tufo, Ana Elisabeth
title Sorption and chemical stability of As(V) onto tin doped goethites
title_short Sorption and chemical stability of As(V) onto tin doped goethites
title_full Sorption and chemical stability of As(V) onto tin doped goethites
title_fullStr Sorption and chemical stability of As(V) onto tin doped goethites
title_full_unstemmed Sorption and chemical stability of As(V) onto tin doped goethites
title_sort sorption and chemical stability of as(v) onto tin doped goethites
publishDate 2014
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97811380_v_n_p714_Larralde
http://hdl.handle.net/20.500.12110/paper_97811380_v_n_p714_Larralde
work_keys_str_mv AT tufoanaelisabeth sorptionandchemicalstabilityofasvontotindopedgoethites
AT sileoelsaester sorptionandchemicalstabilityofasvontotindopedgoethites
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