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dc.contributor.author
Oliveira, Luiz C. A.
dc.contributor.author
Ramalho, Teodorico C.
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Gonçalves, Maraísa
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Cereda, Flávia
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Carvalho, Kele T.
dc.contributor.author
Nazzarro, Marcelo Sandro
dc.contributor.author
Sapag, Manuel Karim
dc.date.available
2023-10-05T13:59:48Z
dc.date.issued
2007-12
dc.identifier.citation
Oliveira, Luiz C. A.; Ramalho, Teodorico C.; Gonçalves, Maraísa; Cereda, Flávia; Carvalho, Kele T.; et al.; Pure niobia as catalyst for the oxidation of organic contaminants: Mechanism study via ESI-MS and theoretical calculations; Elsevier Science; Chemical Physics Letters; 446; 1-3; 12-2007; 133-137
dc.identifier.issn
0009-2614
dc.identifier.uri
http://hdl.handle.net/11336/214215
dc.description.abstract
In this work, synthetic and natural niobium oxide (niobia), were used to promote the oxidation of methylene blue dye. The samples were characterized by XRD, XPS and FTIR measurements. The presence of reactive species on the surface of the samples strongly increases the oxidation rate of the methylene blue dye. The reaction mechanism was studied by ESI-MS analyses. Moreover, kinetic data and XPS spectroscopy suggest that the oxidation of the organic dye involves oxidizing species mainly generated after previous treatment with H2O2. The results also showed that the oxidation takes place by a homolytic mechanism via radical intermediates.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
niobia
dc.subject
catalyst
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ESI-MS
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theoretical calculations
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Ingeniería Química
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Ingeniería Química
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Pure niobia as catalyst for the oxidation of organic contaminants: Mechanism study via ESI-MS and theoretical calculations
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-07-07T20:28:39Z
dc.journal.volume
446
dc.journal.number
1-3
dc.journal.pagination
133-137
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Oliveira, Luiz C. A.. Universidad Federal de Lavras; Brasil
dc.description.fil
Fil: Ramalho, Teodorico C.. Universidad Federal de Lavras; Brasil
dc.description.fil
Fil: Gonçalves, Maraísa. Universidad Federal de Lavras; Brasil
dc.description.fil
Fil: Cereda, Flávia. Universidad Federal de Lavras; Brasil
dc.description.fil
Fil: Carvalho, Kele T.. Universidad Federal de Lavras; Brasil
dc.description.fil
Fil: Nazzarro, Marcelo Sandro. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
dc.description.fil
Fil: Sapag, Manuel Karim. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
dc.journal.title
Chemical Physics Letters
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cplett.2007.08.037
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0009261407011098
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