  Within the field of nanotechnology, nano-scale composites have significant
potential in the development of advanced materials for functional applications.
Here, composites based on carbon nanotubes and titanium dioxides have been
prepared with titanyl sulfate using a chemical bath deposition method at or
near room temperature. Two kinds of titanium dioxide depositions corresponding
to rutile and anatase were sheathed on carbon nanotubes evenly by adjusting the
precursor concentration and temperature. Possible composite mechanisms are
discussed. Compared with original tubes, the specific surface areas have been
improved nearly four times and the content ratio of mesostructures has also
been increased after deposition processes.
