Figure 4From: Synthesis and Photocatalytic Activity of Anatase TiO2 Nanoparticles-coated Carbon NanotubesUV–vis DRS of pure TiO2 (a), CNTs (b) and TiO2 NPs-coated CNTs synthesized with CNTs/TiO2 molar ratio of 1/4 (c), 1/2 (d), 1/1 (e), 2/1 (f), and 4/1 (g)Back to article page