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

The effect of the addition of CeO 2 on the structural and textural properties of TiO 2 and TiO 2 −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 N 2 adsorption techniques. The addition of CeO 2 to the TiO 2 and TiO 2 −CuO samples decreases the anatase−rutile phase transformation when compared with the case of pure TiO 2 . This decrease observed for the phase transformation prevents the substantial surface loss and pore growth associated with this process.