Abstract: Uniform TiO₂: Eu³⁺ nanotubes have been successfully synthesized through a simple solvothermal process with carbon nanotubes（ CNTs） as templates,free of any surfactant or catalyst. X-ray diffraction（ XRD） results demonstrate that the product is a pure anatase phase of TiO₂. Scanning electron microscopy（ SEM） and transmission electron microscopy（ TEM） images indicate that the as-obtained TiO₂: Eu³⁺ nanotubes are uniform in size and distribution,and the thickness of the wall is about 8 nm.The possible formation mechanism has also been proposed. The luminescent spectrum shows that TiO₂:Eu³⁺ nanotubes exhibit a red emission at 612 nm due to the 5D0-7F2 transition. Furthermore,this synthetic route is promising for the preparation of other one-dimensional inorganic nanomaterials because of its simplicity and the low cost of the starting reagents.