Influencia de los tratamientos térmicos en recubrimientos anódicos nanotubulares de TiO2

ABSTRACT TiO2 is a semiconductor widely used in heterogeneous photocatalysis processes for water decontamination. Several studies indicate that ordered nanostructures in anatase phase improve the photocatalytic properties with respect to other morphologies and crystal structures of TiO2. The aim of the present work is to evaluate the influence of different thermal treatments on the structural integrity and crystal structure of the nanotubular TiO2 coatings synthesized by the anodic oxidation technique. A solution of 0.6% w/w ammonium fluoride and 3.5% w/w water in ethylene glycol was used as t...