Effects of Reaction Temperature on the Photocatalytic Activity of TiO2 with Pd and Cu Cocatalysts

The aim of this study was to investigate the effects reaction temperature on photocatalytic activity TiO2 with Pd and Cu cocatalysts. N2 sorption, transmission electron microscopy high-resolution were used characterize specific surface area, pore volume, size, morphology metal distribution catalysts. destruction methylene blue under UV light irradiation test its activity. concentration in water determined by UV-vis spectrophotometer. Pd/TiO2 catalyst more active than Cu/TiO2 TiO2. At 0–50 °C temperature, increased an increase temperature. When as high 70 °C, rate drop slightly became less effective. In contrast, at room other temperatures. results indicate that is influenced type cocatalyst. higher recombination charge carriers will increase. range 50–80 regarded ideal for effective photolysis organic matter. mainly influence quantum effect, i.e., electron-hole separation recombination.