Maintaining a constant voltage the growth of titanium oxide (T iO 2 ) with a tubular geometry was studied.Therefore, the optimal parameters for the growth of TiO 2 were established using an organic electrolytic solution with a total volume of 150ml, composed of water/hydrofluoric acid/ammonium fluoride/ethylene glycol.The anodization conditions were varied, such as: time (60 -215 min), electric potential (5 -20 V), water content (0.0 -2.0 ml), and pH (4.8 -5.1).In this procedure, the conformation of long, open nanotubes with smooth walls was achieved, obtaining a maximum length of 1.90 µm for the nanotubes.However, in some samples before and after annealing a remnant layer can be seen that extends over some regions of the surface of the nanotubes.By means of the current density curves-time (J vs.t), we were able to specify the distinct growth zones of the nanotubes.The samples also were studied structurally by means of X-ray with thermal treatment (ambient-450 0 C).In addition, it was determined, via ultraviolet-visible (UV-Vis) spectroscopy, that the band gap energy varies (3.45 eV-3.03eV).