| 초록 |
This study focuses on the photocatalytic degradation efficiency of bisphenol A (BPA) when H2O2 is used. Fe ion loaded on the surface of TiO2 as a photocatalyst. With increasing Fe ions, the light absorption shifted to a longer wavelength, indicating shorter bandgaps, and the photoluminescence intensities decreased dramatically. The photocatalytic activities of two systems, namely a UV/photocatalytic system and an advanced photocatalytic oxidation-type UV/H2O2/photocatalytic system, were compared using two types of catalysts, TiO2 and Fe-TiO2. Slightly more BPA decomposed in the UV/TiO2 photocatalytic system than the other system. On the other hand, the level of BPA destruction was significantly higher in the UV/H2O2/Fe-TiO2 system. In particular, BPA at 10 ppm were removed completely after only 2 h in the UV/H2O2/5 mol% Fe-TiO2 photocatalytic system. These results confirm that the added H2O2 promotes the BPA oxidation on the Fe-loaded TiO2 catalytic system. |
