Abstract: CuO/TiO₂ nanoparticles were prepared with hydrothrmal method and characterized by means of X-ray diffraction (XRD) and Transmission electronmicroscopy (TEM). The photocatalytic properties of the immobilization of CuO/TiO₂ nanoparticles were assessed by measuring the photodegration of Rhodamine 6G in aqueous solution. These immobilization of CuO/TiO₂ nanoparticles showed much higher photoactivity than immobilization of TiO₂ nanoparticles. Results of this study also indicate that the photodegradative mechanisms are that the doping of Cu²⁺ in TiO₂ nanoparticles made the ability of TiO₂ particles adsorbed Oxggen enhance, and decreaded the recombination of photogenerated electrons and photogenerated hole in the interface of nanoparticles. Therefore the photogenerated reactions were accelerated. In addition, the results that the polluted water was treated with CuO/TiO₂ nanoparticles wre exciting and promising.

Key words: photocatalystic dearadation, rhodamine 6G, immobilization of nanoparticles, wastewater treatment, CuO/TiO₂ nanoparticles, photocatalystic dearadation, rhodamine 6G, immobilization of nanoparticles, wastewater treatment