NANOPARTÍCULAS DE DIÓXIDO DE TITÂNIO E ÓXIDO DE ZINCO: SÍNTESE, CARACTERIZAÇÃO E AÇÃO FOTOCATALÍTICA EM EFLUENTES INDUSTRIAIS

The reuse of effluent water is one the main challenges to achieve a more sustainable development. Dyes from textile industry can percolate, contaminate soils and affect courses. Advanced Oxidative Processes (AOP), such as heterogeneous photocatalysis with UV light radiation metallic nanoparticles, generate reactive oxygen species hydroxyl radicals that reduce pollutants. This work synthesized zinc oxide (ZnO-NP) titanium dioxide (TiO2-NP) nanoparticles in order photodegrade methylene blue tartrazine yellow dyes. crystallographic morphological characterization was performed by X-ray diffraction high resolution scanning electron microscopy. syntheses produced nanometric particles. dye had greater degradation TiO2-NP (82 85%), whereas ZnO-NP (79.6% removal). It concluded combined POA are an effective alternative for photocatalytic