Desarrollo de Reactores Basados en Películas de Materiales Mesoporosos para la Destrucción De Nitratos Disueltos en Agua

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Fecha
10/2011
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Universidad de Atacama. Facultad de Ingeniería
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Revista de la Facultad de Ingeniería
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0716-3711
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Se sintetizaron y estudiaron films mesoporosos de TiO2 para la eliminación fotocatalítica de nitratos disueltos en agua. Los filmes se prepararon sobre sustratos de vidrio, combinando reacciones sol - gel y Autoensamblado Inducido por Evaporación y se caracterizaron estructuralmente por diversas técnicas. Se estudió el efecto del grosor, de la introducción de nanopartículas de plata y del dopaje con bismuto en la ca pacidad fotocatalítica. Los films más efectivos para realizar fotocatálisis y eliminar nitratos fueron aquellos a los cuales se introdujeron nanopartículas de plata, los cuales poseen una capacidad de eliminar nitratos de alrededor de 7,2 ppm/cm2 h.
Mesoporous TiO2 films for the photocatalytic elimination of nitrates dissolved in water were synthesized and studied. The films were prepared on glass substrates by combining sol-gel reactions and evaporation-induced self-assembly and they were characterized structurally by various techniques. The effect of thickness, the introduction of nanoparticles of silver and bismuth doping on the photocatalytic ability were studied. The most effective films for photocatalysis and remove nitrates were those which were made of silver nanoparticles, which have a capacity to remove nitrates from about 7.2 ppm/cm2h.
Mesoporous TiO2 films for the photocatalytic elimination of nitrates dissolved in water were synthesized and studied. The films were prepared on glass substrates by combining sol-gel reactions and evaporation-induced self-assembly and they were characterized structurally by various techniques. The effect of thickness, the introduction of nanoparticles of silver and bismuth doping on the photocatalytic ability were studied. The most effective films for photocatalysis and remove nitrates were those which were made of silver nanoparticles, which have a capacity to remove nitrates from about 7.2 ppm/cm2h.
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