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Artículo

Fe/ZSM-11 as a novel and efficient photocatalyst to degrade Dichlorvos on water solutions

Gómez, Silvina del ValleIcon ; Lerici, Laura CarolinaIcon ; Saux, ClaraIcon ; Pérez, Ana LauraIcon ; Brondino, Carlos DanteIcon ; Pierella, Liliana BeatrizIcon ; Pizzio, Luis ReneIcon
Fecha de publicación: 03/2017
Editorial: Elsevier Science
Revista: Applied Catalysis B: Environmental
ISSN: 0926-3373
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ingeniería Química

Resumen

Iron modified ZSM-11 zeolites were tested as heterogeneous catalysts in the photodegradation of Dichlorvos water solutions. ZSM-11 zeolite matrixes were synthesized by the hydrothermal method and iron was incorporated by the wet impregnation method in four different concentrations. Catalysts samples were characterized by several techniques (XRD, BET, UV–vis DRS, ICP-OES, TPR, EPR) in order to confirm structure, crystallinity and iron species present. α-Fe2O3 was detected by XRD in higher iron content samples and it presence was confirmed by EPR, TPR and UV–vis DRS. Band gap energies for Fe/ZSM-11 samples were closer to that reported for pure α-Fe2O3. The materials so far characterized were tested as heterogeneous catalyst in Dichlorvos photodegradation. Fe/ZSM-11 with a 6 wt% of iron incorporation showed the best catalytic behavior. Higher iron loadings showed lower degradation efficiencies. This material is reusable for at least six catalytic cycles without considerable differences among the DDVP amount degraded.
Palabras clave: Dichlorvos , Fe/Zsm-11 , Photodegradation , Heterogeneous Catalysis , Stability
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/31925
DOI: http://dx.doi.org/10.1016/j.apcatb.2016.09.047
URL: http://www.sciencedirect.com/science/article/pii/S0926337316307354
Colecciones
Articulos(CINDECA)
Articulos de CENTRO DE INV EN CS.APLICADAS "DR.JORGE J.RONCO"
Articulos(CITEQ)
Articulos de CENTRO DE INVESTIGACION Y TECNOLOGIA QUIMICA
Citación
Pizzio, Luis Rene; Pierella, Liliana Beatriz; Brondino, Carlos Dante; Pérez, Ana Laura; Saux, Clara; Lerici, Laura Carolina; et al.; Fe/ZSM-11 as a novel and efficient photocatalyst to degrade Dichlorvos on water solutions; Elsevier Science; Applied Catalysis B: Environmental; 202; 3-2017; 580-586
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