Decolouration of Orange II solutions by TiO2 and ZnO active layers screen-printed on ceramic tiles under sunlight irradiation

Autores: Rego, E.|Marto, J.|São Marcos, P.|Labrincha, J.A.
Fuente: Applied catalysis
355 (1-2), 109-114
2009

TiO2 and ZnO layers have been deposited by screen-printing in common ceramic tiles. These layers were characterized and tested for the photocatalytic degradation of organic dye orange II in aqueous solutions, under direct exposure to the sunlight. Optimal processed layers showed an interesting decolourisation performance, as denoted by an attenuation degree of 90% and decolouration rate of 2.9×10-3 min-1.