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Título: | Manganese ferrite nanoparticles synthesized through a nanocasting route as a highly active Fenton catalyst |
Autor: | Valdés-Solís Iglesias, Teresa CSIC ORCID ; Valle Vigón, Patricia CSIC; Álvarez García, Sonia CSIC; Marbán Calzón, Gregorio CSIC ORCID ; Fuertes Arias, Antonio Benito CSIC ORCID | Palabras clave: | Hydrogen peroxide decomposition Template method Manganese ferrite spinel Nanoparticles Heterogeneous Fenton reaction |
Fecha de publicación: | 10-abr-2007 | Editor: | Elsevier | Citación: | Catalysis Communications 8(12): 2037-2042 (2007) | Resumen: | Spinel ferrite MnFe2O4 nanoparticles were synthesized by means of a nanocasting technique using a low-cost mesoporous silica gel as a hard template. The magnetic nanoparticles, of <10 nm diameter and with a surface area of around 100 m2/g, were tested as a heterogeneous Fenton catalyst for the decomposition of hydrogen peroxide under neutral and basic conditions. This catalyst shows a much higher activity than previous heterogeneous catalysts reported in the literature, which is mainly ascribed to its small particle size. Furthermore, the magnetic catalyst can be easily separated from the reaction medium by means of an external magnetic field. The effects of residual silica and the purity of the catalyst (hematite formation) on catalytic activity have been studied and correlated. The results obtained show this catalyst to be a suitable candidate for the removal of pollutants in wastewaters by means of the Fenton heterogeneous reaction. | Descripción: | 6 pages, 5 figures. -- Printed version published Dec 2007. -- Correction published in Catalysis Communications 9(15): 2621 (2008), http://hdl.handle.net/10261/11596 | Versión del editor: | http://dx.doi.org/10.1016/j.catcom.2007.03.030 | URI: | http://hdl.handle.net/10261/11594 | DOI: | 10.1016/j.catcom.2007.03.030 | ISSN: | 1566-7367 |
Aparece en las colecciones: | (INCAR) Artículos |
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