Sorption of antimony (V) onto synthetic goethite in carbonate medium

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/19693

dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.contributor	Universitat Politècnica de Catalunya. SETRI - Grup de Tècniques de Separació i Tractament de Residus Industrials
dc.contributor	Universitat Politècnica de Catalunya. GHS - Grup d'Hidrologia Subterrània
dc.contributor.author	Martinez-Llado, X
dc.contributor.author	Martínez Lladó, Xavier
dc.contributor.author	Pablo Ribas, Joan de
dc.contributor.author	Giménez Izquierdo, Francisco Javier
dc.contributor.author	Ayora Ibáñez, Carlos
dc.contributor.author	Martí Gregorio, Vicenç
dc.contributor.author	Rovira Boixaderas, Miquel
dc.date	2008-06
dc.identifier.citation	Martinez-Llado, X. [et al.]. Sorption of antimony (V) onto synthetic goethite in carbonate medium. "Solvent extraction and ion exchange", Juny 2008, vol. 26, núm. 3, p. 289-300.
dc.identifier.citation	0736-6299
dc.identifier.citation	10.1080/07366290802053637
dc.identifier.uri	http://hdl.handle.net/2117/19693
dc.language.iso	eng
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria química::Química del medi ambient::Geoquímica
dc.subject	Àrees temàtiques de la UPC::Enginyeria dels materials
dc.subject	Geochemistry
dc.subject	Metalls
dc.subject	Geoquímica
dc.title	Sorption of antimony (V) onto synthetic goethite in carbonate medium
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	The sorption kinetics of antimony(V) on synthetic goethite is very fast compared to the sorption of other metals on goethite (e.g. arsenic and selenium) and depends on temperature, with an activation energy of 49+9 kJ . mol21 in the temperature range 15–358C. Sorption isotherms have been developed at different temperatures and ionic strength values. The results have been modelled using a Langmuir isotherm and there is not a considerable influence of neither the temperature in the range studied (158C–358C), nor the ionic strength (between 0.001 and 0.01 mol . dm23). Sorption is very high at pH values lower than 8, at more alkaline pH, the sorption decreases with pH, as expected considering the Antimony(V) predominating complex in solution, Sb(OH)6 2. Triple-layer model successfully describes the data obtained by assuming a bidentate edge-sharing surface complex of antimonate on the surface of goethite.
dc.description.abstract	Peer Reviewed

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