Abstract：CuO-Ce/Al2O3 catalyst was prepared to degrade phenol by the ultrasound-assisted heterogeneous Fenton-like catalytic oxidation. The influencing factors, such as H2O2 concentration, catalyst loading, pH value and ultrasound intensity, were investigated while the leaching of copper was studied. The surface of catalysts was characterized by X photoelectron spectroscopy (XPS), scanning electron microscope (SEM) and Brunauer-Emmett-Teller (BET). The results showed that the degradation of phenol reached 99.65% at pH value of 6.0, H2O2 concentration of 1650mg/L, catalyst loading of 3.5g/L and ultrasound unit power of 500W. Phenol degradation ability ordered by US/H2O2/CuO-Ce/Al2O3 > H2O2/CuO-Ce/Al2O3 > US/CuO-Ce/Al2O3 > US/H2O2 > US. Catalyst specific surface area, active component content, pore volume as well as size play an important role in affecting the performance of catalyst activity. Active component dissolution was accelerated because of ultrasound process while the deterioration processes, such as the decreasing specific surface area and pore volume as well as the increasing carbon deposition were attenuated.
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