Efficient removal of toluene by $TiO_2$ films on carbon paper

Using a novel deposition technique, which can be described as pulsed chemical vapor deposition (CVD), $TiO_2$ thin films were synthesized on carbon fibers. We show that these films exhibit extraordinary high absorption capacities of toluene vapor. Such an absorption phenomenon of toluene at room temperature was not found for other $TiO_2$ samples. We expect that $TiO_2$ thin films prepared here can be used for removing volatile organic compounds from indoor atmosphere. Structures of there $TiO_2$ films were studied by SEM and XPS, and the results are discussed.