Preparation, Photocatalytic Property and Antibacterial Property of Ag@TiO$lt;inf$gt;2$lt;/inf$gt;@SiO$lt;inf$gt;2$lt;/inf$gt; Composite Nanomaterials

TiO 2 @SiO 2 composites with core-shell structure were successfully synthesized using SiO 2 as template by Sol-Gel method. Ag nanoparticles (NPs) were photo-deposited on the surface of TiO 2 @SiO 2 to form core-shell Ag@TiO 2 @SiO 2 composites. The resulting samples were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscope (XPS) and UV-Vis diffuse reflectance spectra (DRS).