TiO 2 nanoparticles were deposited on carbon nanotubes (CNTs) for improvement of their photocatalytic activity. CNTs could be uniformly covered with TiO 2 nanoparticles by the hydrolysis of titanium tetraisopropoxide in the presence of urea. Urea worked as linker molecules between the CNT surface and the TiO 2 nanoparticles. The resultant TiO 2CNT composites showed a high catalytic activity for photodegradation of organic molecules.
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