Exafs And Dft Study Of The Cadmium And Lead Adsorption On Modified Silica Nanoparticles

dc.creatorArce
dc.creatorValeria B.; Gargarello
dc.creatorRomina M.; Ortega
dc.creatorFlorencia; Romanano
dc.creatorVirginia; Mizrahi
dc.creatorMartin; Ramallo-Lopez
dc.creatorJose M.; Cobos
dc.creatorCarlos J.; Airoldi
dc.creatorClaudio; Bernardelli
dc.creatorCecilia; Donati
dc.creatorEdgardo R.; Martire
dc.creatorDaniel O.
dc.date2015-DEC
dc.date2016-06-07T13:36:13Z
dc.date2016-06-07T13:36:13Z
dc.date.accessioned2018-03-29T01:51:37Z
dc.date.available2018-03-29T01:51:37Z
dc.identifier
dc.identifierExafs And Dft Study Of The Cadmium And Lead Adsorption On Modified Silica Nanoparticles. Pergamon-elsevier Science Ltd, v. 151, p. 156-163 DEC-2015.
dc.identifier1386-1425
dc.identifierWOS:000361861300022
dc.identifier10.1016/j.saa.2015.06.093
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S1386142515007891
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/244272
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1307970
dc.descriptionSilica nanoparticles of 7 nm diameter were modified with (3-aminopropyl) triethoxysilane (APTES) and characterized by CP-MAS C-13 and Si-29 NMR, FTIR, zeta potential measurements, and thermogravimetry. The particles were shown to sorb successfully divalent lead and cadmium ions from aqueous solution. Lead complexation with these silica nanoparticles was clearly confirmed by EXAFS (Extended X-ray Absorption Fine Structure) with synchrotron light measurements. Predicted Pb-N and Pb-C distances obtained from quantum-chemical calculations are in very good agreement with the EXAFS determinations. The calculations also support the higher APTES affinity for Pb2+ compared to Cd2+. (C) 2015 Elsevier B.V. All rights reserved.
dc.description151
dc.description
dc.description
dc.description156
dc.description163
dc.descriptionGrant PICT from Agencia Nacional de Promocion Cientifica y Tecnologica, (ANPCyT, Argentina) [0686]
dc.descriptionPIP (CONICET, Argentina) [01035]
dc.description
dc.description
dc.description
dc.languageen
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.publisher
dc.publisherOXFORD
dc.relationSPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
dc.rightsembargo
dc.sourceWOS
dc.subjectFunctionalized Mesoporous Silica
dc.subjectCompact Effective Potentials
dc.subjectExponent Basis-sets
dc.subjectRemoval
dc.subjectDensity
dc.subjectEfficient
dc.subjectMetals
dc.subjectStates
dc.subjectAtoms
dc.titleExafs And Dft Study Of The Cadmium And Lead Adsorption On Modified Silica Nanoparticles
dc.typeArtículos de revistas


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