Fabrication and Characterization of Highly Ordered Porous Anodic Titania on Titanium Substrate

Anodization of Ti using ethylene glycol containing 0.5wt% NH_4F as electrolyte resulted in ordered arrays of TiO_2 nanotube with a smooth surface.Electrochemical anodization was carried out at room temperature.The microstructures and morphologies of the TiO_2 nanotube were investigated by scanning electron microscope (SEM),X-ray diffraction (XRD).A series of studies were carried out to investigate the properties of TiO_2 nanotubes (anatase) for lithium anode materials and for the materials of photocatalyzing degradation of aqueous methyl orange.The results show that high density,well ordered and uniform TiO_2 nanotube arrays are fabricated.TiO_2 nanotube shows a comparatively reversible reaction when it is used for lithium ion battery by CV measurement.Adding H_2O_2 into the solution can improve the photocatalysis of TiO_2 nanotube.