Preparation and Photocatalytic Property of Nickel-Doped Titanium Dioxide Nanotubes

The nickel-doped titanium dioxide nanotubes were prepared by Sol-gel and hydrothermal method and used to photodecompose methylene blue (MB) in liquid phase under visible light irradiation. The anatase-type titania nanotubes were shown to be hollow scrolls with outer diameter of about 10-15 nm and length of several hundred nanometers. The photocatalytic properties of Ni-doped titanium dioxide nanotubes and nanopowders were studied by degrading of MB. The results show that appropriate content of nickel can effectively enhance the photocatalytic activity of titanium dioxide nanotubes.