Comparison of photocatalytical properties of anatase and rutile TiO_2 in degradation of 4-chlorophenol in aqueous solution

摘要

The photocatalytic activity of both anatase and rutile TiO_2 powders prepared by homogeneous precipitation of TiOSO_4 aqueous solutions with urea toward the degradation of 4-chlorophenol in aqueous solution have been studied and compared to commercial Degussa P25 powder. The obtained TiO_2 phases have been characterized by means of powder X-ray diffraction (XRD), SEM/EDX, HTEM, DTA/TG and BET method measurements.