PERSONAL DE APOYO
MARCHI Maria Claudia
congresos y reuniones científicas
Título:
Influence of pyrolytic Seeds on ZnO nanorods growth onto rigid substrates for photocatalytic disinfection of water
Autor/es:
LUIS SÁNCHES; LUCAS GUZ; PILAR GARCIA; SILVIA PONCE; SILVIA GOYANES; MARIA CLAUDIA MARCHI; ROBERTO CANDAL
Lugar:
Recife
Reunión:
Congreso; 7° Encontro sobre Aplicações Ambientais de Processos Oxidativos Avançados; 1º Congresso Iberoamericano de Processos Oxidativos Avançados; 2013
Institución organizadora:
Sociedade Portuguesa de Química
Resumen:
ZnO nanorods were grown onto conductive transparent substrates at low temperatures (90C) from Zn2+ precursors in alkaline media previously seeded with ZnO nanoparticles. Seeds were deposited onto the substrate heated at 350C by spray pyrolysis of a Zn acetate solution in a water ethanol mixture. The structure of seeds was tuned by the ethanol water , which controls the solvent evaporation rate of drops impinging G ratio, the substrate. The rods have a hexagonal cross section varying from deposition conditions. Using these rods, the photocatalytic degradation of Escherichia coli bacteria in water was studied; a positive influence of the surface area and crystalline growth on the degradation rate was observed.