Zeolites had applied to catalyst supports for an oxidation reaction in the liquid phase paying attention to their properties, such as large surface area, ordered structures and high thermal stability. The Cu-supported catalysts were prepared by the impregnation method with Cu(CH₃COO)₂·H₂O as a precursor. All catalysts supported on MCM-41, NaX, NaY and AlPO₄ were studied in these conditions: reaction temperature, 65 ℃; reaction time, 5 hr; solvent, acetone; oxidant, hydrogen peroxide (H₂O₂. The characteristics of catalysts were analyzed by XRD, TEM and ASAP 2010 for the investigation of BET surface area and pore size distribution. The reaction products were analyzed using HPLC.