In this paper, we describe the synthesis of titanium dioxide nanotubes via hydrothermal method. We have examined the obtained materials using TEM, XRD analysis. The samples were prepared from titanium chloride via a two-step hydrothermal process. The synthesized samples are composed of regularly shaped nanotubes with the outer diameter being about 5-8 nm and length of about 50-70 nm. The hydrothermal treatment technology was used in the experiment to obtain nanomaterials containing nanotubes with smooth surfaces. We have found out that titanium dioxide nanotubes demonstrate an increased photo-catalytic activity, which can be as high as that of the best commercial crystalline powders or even higher.
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