| 초록 |
In this work, we have prepared TiO2 nanotubes/graphene composites by hydrothermal method for enhancing photocatalytic activities. Structural properties of the samples were characterized by X-ray diffraction spectroscopy (XRD), and scanning electronic microscopy (SEM). Photocatalytic activities were evaluated using trichloroethylene solution under solar light irradiation, and analyzed by Gas chromatography (GC). Photocatalytic efficiency of TiO2 nanotubes/graphene was improved compared to commercially available TiO2. These results suggested that graphene has important roles for photocatalytic activity because of their reduced band gap energy and decreased recombination ratio of excited electrons. |
