Sonocatalytic degradation of Rhodamine B in the presence of C60 and CdS coupled TiO2 particles

CdS-TiO₂ and CdS-C₆₀/TiO₂ were prepared using C₆₀, cadmium acetate dehydrate [(CH₃COO)₂Cd·2H₂O], sodium sulfide (Na₂S·5H₂O) and titanium (IV) n-butoxide by a sol-gel method. The prepared sonocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) and transmission electron microscopy (TEM). A rhodamine B (RhB) solution under ultrasonic irradiation was used to determine the catalytic activity. Excellent catalytic degradation of an RhB solution was observed using the CdS-C₆₀/TiO₂ composites under ultrasonic irradiation. C₆₀ coupled CdS-TiO₂ can enhance the Brunauer-Emmett-Teller (BET) surface area and increase the decolorization rate for rhodamine B solution. The results also shows that increase the content of CdS can enhance the catalytic activity.