| 초록 |
Titanium dioxide(TiO2) is useful material which remove the organic pollutant from both air and water. Generally, catalytic activity increases as doping with non-metal or loading metal particles on the TiO2. In this study, metal particles were attached on the N doped TiO2 surface by using sodium borohydride as a reducing agent. Reducing agent has effects on the reduction rate that the more amount and smaller metal particle could be attached on the N-TiO2 surface. The photocatalytic activity of metal coupled N-TiO2 was also evaluated when using the reducing agent. Transmission electron microscope and UV-Vis spectrophotometer were used to observe the amount of metal particles attached on the surface. The photocatlytic activities of as-prepared samples were characterized by the decoloration of aqueous MO or MB solution under Xenon light source. Toluene or p-xylene were selected for target VOC material to measure of decomposition and monitoring the concentration under UVLED irradiation in a closed chamber system. |
