| 초록 |
We studied electro-chemical treatment of organic dye pollutant by using TiO2/ITO electrode, which was prepared by spin coating and post-annealing at 550oC. At +5V DC voltage, the degradation rate of dye(C.I : Basic_Blue_26) was quite small (~3.0% at 1hr) due to shottky barrier between solution and TiO2. However, at sufficient large voltage (+10V), the degradation rate significantly increased (53.3% at 1hr) by OH radical generation by electron tunneling to conduction band of TiO2 semiconductor. We suggest that the TiO2/ITO electrode be applied to the electro-chemical treatment of dye pollutants without light source. |
