| 초록 |
We have studied several methods such as dip-coating, spin-coating and electro-deposition to deposit twisted TiO2 nanotubes on mesoporous media. From the preliminary morphological and photo-current studies, electro-deposition was found to be the appropriate method for the deposition of TiO2 nanotubes. We then systematically investigated to obtain the optimum condition for improved photo-electrochemical properties by changing various factors like time, concentration, voltage, annealing temperature and media. Twisted TiO2 nanotubes/carbon nanotubes have shown superior activity under visible light irradiation and large reactive surface area. Finally, but most importantly efficiency of twisted TiO2 nanotubes/carbon nanotubes on mesoporous media were comparatively studied by photo-induced CO2 reduction test. |
