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Published in: Journal of Materials Science 17/2008

01-09-2008

Catalytic behavior of niobia species on oxidation reactions: insights from experimental and theoretical models

Authors: Teodorico C. Ramalho, Luiz C. A. Oliveira, Kele T. G. Carvalho, Eugênio F. Souza, Elaine F. F. da Cunha, Marcelo Nazzaro

Published in: Journal of Materials Science | Issue 17/2008

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Abstract

This paper describes the preparation and use of a new class of material based on synthetic Niobia as catalysts in oxidizing reactions of organic compounds in aqueous medium. The reaction chemicals were carried out in presence of hydrogen peroxide (H2O2). The material was characterized with X-ray diffraction, XPS, and UV–Vis measurements. The organic molecule methylene-blue was used in decomposition study as probe contaminant. The analysis using the ESI-MS technique showed complete oxidation observed through different intermediates. This suggests the use of Niobia species as efficient Fenton-like catalyst in degradation reactions. Theoretical quantum DFT calculations were carried out in order to understand the degradation mechanism.

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Metadata
Title
Catalytic behavior of niobia species on oxidation reactions: insights from experimental and theoretical models
Authors
Teodorico C. Ramalho
Luiz C. A. Oliveira
Kele T. G. Carvalho
Eugênio F. Souza
Elaine F. F. da Cunha
Marcelo Nazzaro
Publication date
01-09-2008
Publisher
Springer US
Published in
Journal of Materials Science / Issue 17/2008
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-008-2748-1

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