This paper reports the microwave hydrothermal synthesis of TiO2 nanotubes and their characterization. Structural properties of the as synthesized materials were investigated by X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM) and Raman Spectroscopy. Results revealed that the TiO2 nanotubes consists of different layers of titanates (Na2Ti4O9, H2Ti5O11 x H2O, ZnTiO3). Raman results indicate that there is a definite phase change observed between the samples analysed, which can be attributed to alterations in the morphology and subsequent phase of the samples.