Phase transformation and photocatalytic characteristics of anodic TiO2 nanotubular film

► A Self-organized titania nanotubular photocatalyst was synthesized by anodization. ► The Kinetic parameters of the titania nanotubular film were investigated using in-situ XRD. ► The Rate constant for dye degradation was dependent on the nanotube length. ► The best photocatalytic efficiency of the TiO2 nanotube was obtained at an optimum tube length of 430 nm.