Preparation and Characterization of TiO2@SiO2-Ag Nanospheres Photocatalyst, and Investigation of Its Photocatalytic Activity on Methylene Blue

Creative Commons License

Tekin T., Tekin D., Kızıltaş H.

Journal of the Turkish Chemical Society Section B: Chemical Engineering, cilt.1, sa.1, ss.89-96, 2017 (Hakemli Dergi)

Özet

Titanium dioxide shows tremendous potential for the decomposition of organic pollutants under UV and visible light irradiation. In this study TiO2 nanospheres @ mesoporous silica nanospheres (TiO2@SiO2) photocatalyst was synthesized by the sol-gel method. The synthesized TiO2/SiO2 photocatalyst was decorated by Ag nanoparticle. The decorated TiO2@SiO2– Ag photocatalyst by a hydrothermal method was characterized by scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The SEM results show that TiO2@SiO2–Ag nanospheres photocatalyst was uniformly formed. The EDS analysis proves that the nanospheres photocatalyst consists of Ti, Si, O, and Ag. The TiO2@SiO2–Ag nanospheres photocatalyst exhibited better photocatalytic performance for the degradation of methylene blue under direct UV illumination