TiO2-coated carbon nanotubes: A redshift enhanced photocatalysis at visible light

Annealing of carbon nanotubes coated with thin and uniform TiO2 results in carbon diffusion into oxygen lattices and doping induced redshift is evident by an efficient photocatalysis at visible light. The underlying mechanism is discussed. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3454908]