Inhibition of the Anatase−Rutile Phase Transformation with Addition of CeO2 to CuO−TiO2 System: Raman Spectroscopy, X-ray Diffraction, and Textural Studies

Abstract

The effect of the addition of CeO2 on the structural and textural properties of TiO2 and TiO2−CuO samples calcined at different temperatures was analyzed. The structural and textural transformation when the temperature of calcination was varied was followed by X-ray diffraction, Raman spectroscopy, and N2 adsorption techniques. The addition of CeO2 to the TiO2 and TiO2−CuO samples decreases the anatase−rutile phase transformation when compared with the case of pure TiO2. This decrease observed for the phase transformation prevents the substantial surface loss and pore growth associated with this process.