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: Larralde, A.L., Tufo, A.E., Sileo, E.E., et al.; National Atomic Energy Commission (CNEA); National Research and Technology Council (CONICET); The Argentine Foundation of Nanotechnology; The National University of Buenos Aires (UBA); The National University of San Martin (UNSAM)
Formato: CONF
Materias:
Adsorption
Arsenic
Dissolution
Acid media
Sigmoidal curves
Tin
Acceso en línea: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
id todo:paper_97811380_v_n_p714_Larralde
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spelling todo:paper_97811380_v_n_p714_Larralde2023-10-03T16:43:01Z Sorption and chemical stability of As(V) onto tin doped goethites Larralde, A.L. Tufo, A.E. Sileo, E.E. et al.; National Atomic Energy Commission (CNEA); National Research and Technology Council (CONICET); The Argentine Foundation of Nanotechnology; The National University of Buenos Aires (UBA); The National University of San Martin (UNSAM) 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. CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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
Larralde, A.L.
Tufo, A.E.
Sileo, E.E.
et al.; National Atomic Energy Commission (CNEA); National Research and Technology Council (CONICET); The Argentine Foundation of Nanotechnology; The National University of Buenos Aires (UBA); The National University of San Martin (UNSAM)
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.
format CONF
author Larralde, A.L.
Tufo, A.E.
Sileo, E.E.
et al.; National Atomic Energy Commission (CNEA); National Research and Technology Council (CONICET); The Argentine Foundation of Nanotechnology; The National University of Buenos Aires (UBA); The National University of San Martin (UNSAM)
author_facet Larralde, A.L.
Tufo, A.E.
Sileo, E.E.
et al.; National Atomic Energy Commission (CNEA); National Research and Technology Council (CONICET); The Argentine Foundation of Nanotechnology; The National University of Buenos Aires (UBA); The National University of San Martin (UNSAM)
author_sort Larralde, A.L.
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
url http://hdl.handle.net/20.500.12110/paper_97811380_v_n_p714_Larralde
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AT sileoee sorptionandchemicalstabilityofasvontotindopedgoethites
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