Incorporation of selenium(IV) and selenium(VI) on uranyl peroxide

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/85868

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.author	Martínez Torrents, Albert
dc.contributor.author	Giménez Izquierdo, Francisco Javier
dc.contributor.author	Martínez Lledó, Xavier
dc.contributor.author	Casas Pons, Ignasi
dc.contributor.author	De pablo, J.
dc.date	2015-01-01
dc.identifier.citation	Martinez, A., Gimenez, F., Martínez, X., Casas, I., De pablo, J. Incorporation of selenium(IV) and selenium(VI) on uranyl peroxide. "Journal of radioanalytical and nuclear chemistry", 01 Gener 2015, vol. 303, p. 153-159.
dc.identifier.citation	0236-5731
dc.identifier.citation	10.1007/s10967-014-3323-7
dc.identifier.uri	http://hdl.handle.net/2117/85868
dc.language.iso	eng
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Enginyeria química
dc.subject	Langmuir isotherm
dc.subject	Radionuclide sorption
dc.subject	Sorption kinetics
dc.subject	Uranium peroxides
dc.subject	Residus radioactius
dc.title	Incorporation of selenium(IV) and selenium(VI) on uranyl peroxide
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	© 2014, Akadémiai Kiadó, Budapest, Hungary. The sorption of Se(IV) and Se(VI) on uranium peroxide has been studied considering the sorption kinetics, the sorption isotherms and the effect of pH. Selenium sorption on studtite is fitted with a pseudosecond order reaction model; in addition, two different mechanisms seem to influence the sorption process: micropore diffusion and intra-particle diffusion. Both selenium(IV) and selenium(VI) are sorbed on studtite through a monolayer coverage. Sorption is higher at acidic pH than at alkaline pH. This behaviour is consistent with the chemical speciation of selenium in solution and with the acid–base properties of the solid.

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