Fabrication of TiO2/Ag2S nano-composites via a new method for photocatalytic degradation of para red

In this study ,Ag2S doped TiO2 photocatalyst was successfully prepared in different ratios for para red Photodegradation. Transmission electron microscope (TEM) and powder X-ray diffraction (XRD) were used to characterize the microstructure and morphology of the products. The TiO2/Ag2S photocatalyst showed high photocatalytic activity during the degradation of para red under UV- visible light and solar irradiation. The results show that an appropriate amount of Ag2S dopant can greatly increase the amount of hydroxyl radicals generated by TiO2 nanoparticles, which are responsible for the obvious increase of photocatalytic activity.

Keywords:

TiO2/Ag2S , nanocomposite , , para red , photocatalyst , morphology , X-ray diffraction