Research Article

Photocatalytic Improvement under Visible Light in Nanoparticles by Carbon Nanotube Incorporation

Figure 8

Photocatalytic degradations of acid-treated CNT, TiO2, and CNT/TiO2 nanocomposites at various molar ratios of CNT to TiO2 (calcined at 400°C) compared with a blank (MB without any photocatalyst). The experiments were carried out under (a) dark condition and (b) visible irradiation (remark: CNT in (b) was acid-treated CNT after 12-h dye adsorption under dark condition to reach the adsorption equilibrium of dye on CNT).
(a)
(b)