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dc.date.accessioned 2021-08-11T14:41:28Z
dc.date.available 2021-08-11T14:41:28Z
dc.date.issued 2014
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/122503
dc.description.abstract Mn-Ce solids were used for the adsorption of phenol from aqueous solution at 25 and 50 C. The samples were prepared with a Mn-Ce molar ratio Between 0 and 100 % by the alkaline co-precipitation method (KOH). Structural studies showed the formation of cryptomelane, Mn2O3, Mn5O8, Mn3O4 and CeO2. The formation of different phases is a function of the Ce concentration. The adsorption isotherms of phenol were determined and modelled with Langmuir and Freundlich equations. Sample 7/3 had a high adsorption capacity. Thermodynamic parameters, in flat and vertical position of phenol, were calculated. These parameters indicated that the adsorption of phenol onto Mn-Ce was spontaneous and exothermic. The DRIFTS study detected of both phenol and phenolate species adsorbed on the surface and the aromatic ring of phenol is parallel to the surface. The interaction between Mn and Ce enhanced the reducibility of the oxides and activated oxygen, which is favorable for the adsorption process. en
dc.language en es
dc.subject Phenol adsorption es
dc.subject Alkaline precipitation es
dc.subject Mn–Ce–K es
dc.subject Thermodynamic parameters es
dc.title Removal of phenol from aqueous solutions by adsorption onto Mn-Ce-K solids en
dc.type Articulo es
sedici.identifier.other http://dx.doi.org/10.1007/s11144-014-0747-6 es
sedici.identifier.issn 1878-5190 es
sedici.identifier.issn 1878-5204 es
sedici.creator.person D'Alessandro, Oriana es
sedici.creator.person Thomas, Horacio Jorge es
sedici.creator.person Sambeth, Jorge Enrique es
sedici.subject.materias Química es
sedici.description.fulltext true es
mods.originInfo.place Centro de Investigación y Desarrollo en Ciencias Aplicadas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution 4.0 International (CC BY 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Reaction Kinetics, Mechanisms and Catalysis es
sedici.relation.journalVolumeAndIssue vol. 112, no. 1 es


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Creative Commons Attribution 4.0 International (CC BY 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution 4.0 International (CC BY 4.0)