WO₃ -incorporated C–TiO₂ nanotubes were successfully fabricated using radio frequency sputtering technique. The effects of sputtering powers on the nanotube morphology, crystal structure, optical properties and visible photoresponse were investigated. Lattice substitution of WO₃ species within the lattice of C–TiO₂ nanotubes has an important function in maximizing the photocurrent generation. WO₃ -incorporated C–TiO₂ nanotubes exhibit good visible photoresponse compared with C–TiO₂ nanotubes. The interpretation of interband states has an important function in improving photoinduced electron transport.