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. 2009 Dec 24;5(3):603–607. doi: 10.1007/s11671-009-9513-5

Figure 4.

Figure 4

UV–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)