Degradación de atrazina mediante foto-Fenton heterogéneo empleando materiales nano-estructurados
Date
2016
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Abstract
En este trabajo se sintetizaron silicatos mesoporosos del tipo MCM-41 modificados con hierro
mediante el método de impregnación húmeda con diferentes cargas del metal.
Las diferentes meso-estructuras obtenidas se caracterizaron mediante DRX, UVvis-RD, ICP y
XPS y se estudió su comportamiento como catalizadores heterogéneos en la reacción fotoFenton. Así, estos materiales mesoporosos estructurados modificados con hierro fueron probados
con éxito en la reacción de degradación foto-Fenton heterogénea de soluciones de atrazina en
agua, utilizando radiación UV-visible, temperatura ambiente y un pH cercano al neutro.
Los resultados obtenidos indican que la vía heterogénea del proceso foto-Fenton también puede
ser empleada eficientemente para tratar aguas residuales que contienen atrazina, con las ventajas
que esto implica frente a un proceso homogéneo.
In this work, MCM-41 materials have been synthesized and modified with iron by the wet impregnation method with different metal loadings. The different meso-structures obtained were characterized by XDR, UVVIS-RD, ICP and XPS and their behavior as heterogeneous catalysts in the photo-Fenton reaction was studied. Thus, ironcontaining mesostructured materials have been successfully tested for the heterogeneous photoFenton degradation of atrazine aqueous solutions using UV-visible irradiation at room temperature and close to neutral pH. The obtained results indicate that the heterogeneous via of photo-Fenton process can also be efficiently employed to treat wastewaters containing atrazine, with the advantages that implies in contrast to a homogeneous process.
In this work, MCM-41 materials have been synthesized and modified with iron by the wet impregnation method with different metal loadings. The different meso-structures obtained were characterized by XDR, UVVIS-RD, ICP and XPS and their behavior as heterogeneous catalysts in the photo-Fenton reaction was studied. Thus, ironcontaining mesostructured materials have been successfully tested for the heterogeneous photoFenton degradation of atrazine aqueous solutions using UV-visible irradiation at room temperature and close to neutral pH. The obtained results indicate that the heterogeneous via of photo-Fenton process can also be efficiently employed to treat wastewaters containing atrazine, with the advantages that implies in contrast to a homogeneous process.
Description
Keywords
Procesos avanzados de oxidación, Fotorreactores, Materiales nanoestructurados, Atrazina
Citation
Congreso de Ingeniería de Procesos y Productos (2016).
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