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

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...

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Autores principales: Gomez, Silvina, Lerici, Laura, Saux, Clara, Pérez, Ana Laura, Brondino, Carlos D., Pierella, Liliana, Pizzio, Luis René
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Química
Dichlorvos
Fe/ZSM-11
Photodegradation
Heterogeneous catalysis
Stability
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/104866
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-104866
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Dichlorvos
Fe/ZSM-11
Photodegradation
Heterogeneous catalysis
Stability
spellingShingle Química
Dichlorvos
Fe/ZSM-11
Photodegradation
Heterogeneous catalysis
Stability
Gomez, Silvina
Lerici, Laura
Saux, Clara
Pérez, Ana Laura
Brondino, Carlos D.
Pierella, Liliana
Pizzio, Luis René
Fe/ZSM-11 as a novel and efficient photocatalyst to degrade Dichlorvos on water solutions
topic_facet Química
Dichlorvos
Fe/ZSM-11
Photodegradation
Heterogeneous catalysis
Stability
description 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.
format Articulo
Articulo
author Gomez, Silvina
Lerici, Laura
Saux, Clara
Pérez, Ana Laura
Brondino, Carlos D.
Pierella, Liliana
Pizzio, Luis René
author_facet Gomez, Silvina
Lerici, Laura
Saux, Clara
Pérez, Ana Laura
Brondino, Carlos D.
Pierella, Liliana
Pizzio, Luis René
author_sort Gomez, Silvina
title Fe/ZSM-11 as a novel and efficient photocatalyst to degrade Dichlorvos on water solutions
title_short Fe/ZSM-11 as a novel and efficient photocatalyst to degrade Dichlorvos on water solutions
title_full Fe/ZSM-11 as a novel and efficient photocatalyst to degrade Dichlorvos on water solutions
title_fullStr Fe/ZSM-11 as a novel and efficient photocatalyst to degrade Dichlorvos on water solutions
title_full_unstemmed Fe/ZSM-11 as a novel and efficient photocatalyst to degrade Dichlorvos on water solutions
title_sort fe/zsm-11 as a novel and efficient photocatalyst to degrade dichlorvos on water solutions
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/104866
work_keys_str_mv AT gomezsilvina fezsm11asanovelandefficientphotocatalysttodegradedichlorvosonwatersolutions
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bdutipo_str Repositorios
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