The Effects of Surfactant in the Sol–gel Synthesis of CuO/TiO2 Nanocomposites on Its Photocatalytic Activities under UV-visible and Visible Light Illuminations

Effective and low-cost CuO/TiO2 nanocomposites were prepared at room temperature by a surfactant-assisted sol–gel method for photocatalytic activities under UV-visible and visible light irradiations.