| 초록 |
Photocatalysis has been proved an effective and sustainable technology for the removal of organic and inorganic pollutants from water. The most commonly used photocatalyst is titanium dioxide (TiO2) due to its high level of photocatalytic activity, prolonged chemical stability, and low toxicity and production cost. The photocatalytic activity commonly is investigated in a slurry type reactor. In these application, the photocatalyst particles have to be separated by filtration, coagulation flocculation or centrifugation achieving a catalyst free solution and recycling the catalyst. To avoid the separation step the photocatalyst has to be attached onto a support. In this study, we prepared TiO2 coating sol using sol-gel method and TiO2 thin film was immobilized on the glass beads. TiO2-coated glass bead were applied to photocatalytic decomposition of phenol. All samples were characterized using XRD, SEM and UV-Vis spectroscopy. |
