علی ایزدبخش

In this study, the photocatalytic conversion of CO2 evaluated in the presence of water and NaOH solution (0.2 N), by Cu doped Ti-SBA-15 photocatalyst. Experiments were carried out in a continuous liquid phase cylindrical reactor, in and under the direct radiation of 9 W UV lamp with wavelength of 254 nm. GC analysis was used in measuring the concentrations of products collected from the reaction experiment. The N2 isotherm adsorption, X-ray Diffraction (XRD) and UV-Vis DRS analyses were used for characterization of photocatalysts. The surface area of photocatalyst was calculated 949 m2/g and the band gap wavelength was obtained 389.69 nm from from UV-Vis analysis. The results indicated that the highest amount of methanol produced in the presence of 2% Cu-Ti-SBA15 in aqueous solution was about 0.94 ?mol/gcat and in the case of using a 0.2 N NaOH solution increased to about 3.13 ?mol/gcat .