摘要：The degradation of Diclofenac and Ibuprofen were studied in water using the synthesized catalysts, SiO2/TiO2, doped with N and Ru, under sun light in a solar bath-like system. The % removal range was between 70-78% for Diclofenac and 7887% for ibuprofen with 0.2% weight of catalysts. The photocatalysts were synthesized by the incipient wetness impregnation method, and characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) for morphology and structure analysis. SEM images show a particle size range of 12-35 nm, the XRD analysis show amorphous structure for the catalysts. Excitation emission Fluorescence spectrophotometery for SiO2/TiO2, SiO2/TiO2/Ru and SiO2/TiO2 /N was used for the determination of 义 emission. A red shift was found for the doped catalysts. The doped catalysts showed a higher % degradation comparing with the degradation under UV artificial light. Photocatalytic activity of SiO2/TiO2, SiO2/TiO2/Ru and Si〇2/Ti〇2/N was evaluated by measuring methylene blue (MB) degradation under UV irradiation on UV-Vis spectrophotometer.
