RhodamineB (RB) dye—doped core-shell composite microspheres were synthesized by a chemical method from the hydrolysis of the titanium tetrachloride (). The morphology and chemical bonding information of composite material was investigated by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). TEM and SEM images illustrate that core-shell composite microspheres are spherical in shape and have a nano-range thin coating of on the surface of . The core-shell composite microspheres calcined at 400°C exhibit sharp XRD peaks of anatase and rutile crystalline phases of . The unit cell parameters were calculated from different peaks. The FTIR spectrum confirms the existence of stretching modes (Si-O-Si and Ti-O-Ti) in the core-shell composite microspheres. The photocatalytic properties were evaluated by the photo degradation of under ultraviolet-visible irradiation for as-synthesized and at an 850°C calcination temperature of the core-shell composite.