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dc.date.accessioned 2020-11-05T20:35:18Z
dc.date.available 2020-11-05T20:35:18Z
dc.date.issued 2015
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/108444
dc.description.abstract Silica nanoparticles of 7 nm diameter were modified with (3-aminopropyl) triethoxysilane (APTES) and characterized by CP-MAS 13C and 29Si 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+. en
dc.format.extent vol. 151 es
dc.language en es
dc.subject Cadmium es
dc.subject Lead es
dc.subject Silica nanoparticles es
dc.subject EXAFS es
dc.subject DFT es
dc.subject MEH-PPV es
dc.title EXAFS and DFT study of the cadmium and lead adsorption on modified silica nanoparticles en
dc.type Articulo es
sedici.identifier.other http://dx.doi.org/10.1016/j.saa.2015.06.093 es
sedici.identifier.issn 1386-1425 es
sedici.creator.person Arce, Valeria Beatriz es
sedici.creator.person Gargarello, Romina M. es
sedici.creator.person Ortega, Florencia es
sedici.creator.person Romañano, Virginia es
sedici.creator.person Mizrahi, Martín D. es
sedici.creator.person Ramallo López, José Martín es
sedici.creator.person Cobos, Carlos Jorge es
sedici.creator.person Airoldi, Claudio es
sedici.creator.person Bernardelli, Cecilia Elena es
sedici.creator.person Donati, Edgardo Rubén es
sedici.creator.person Mártire, Daniel Osvaldo es
sedici.subject.materias Ciencias Exactas es
sedici.description.fulltext true es
mods.originInfo.place Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas es
mods.originInfo.place Centro de Investigaciones Ópticas es
mods.originInfo.place Centro de Investigación y Desarrollo en Fermentaciones Industriales es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Spectrochimica Acta Part A es
sedici.relation.journalVolumeAndIssue vol. 151 es


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