Síntese assistida por microondas com exposição a 5 e 10 minutos de fotocatalisador híbrido de TiO2, AgNO3 e CuNO3

Abstract

Synthetic dyes, such as Ponceau 4R, are widely used in the food and pharmaceutical industries due to their high stability and low cost, but their use is restricted in several countries because they are associated with adverse effects, such as inflammation and cellular damage. Conventional biodegradation methods have limited effectiveness in removing these dyes, creating a need for more efficient technologies, such as heterogeneous photocatalysis. Titanium dioxide (TiO2), a promising material for photocatalysis due to its high stability and catalytic activity, can be enhanced by doping with metals such as silver (Ag) and copper (Cu), increasing its visible light absorption and performance. Microwave-assisted synthesis emerges as an efficient technique, accelerating reactions and facilitating the production of hybrid TiO2 photocatalysts doped with AgNO3 and CuNO3 for the degradation of dyes like Ponceau 4R.