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In recent past development of silver nanoparticles and their application in the treatment of wastewaters is becoming a major area of research. It is mainly applicable to the removal of three major pollutants like pesticides, heavy metals, and microorganisms. Variety of synthesis techniques have been reported for preparation and characterization of silver nanoparticles. ZrO synthesized 2-CeO2 In by a our research, we synthesized Ag nanoparticles “deposit-precipitation method” as the first supported step and later on sequentially ZrO2 and evaluated Ag-Au supported in catalytic wet air oxidation on ZrO2 and (CWAO) ZrO2-CeO of methyl 2 by Redox tert-butyl method. ether Catalysts and were phenol. The CWAO is a liquid phase process for the treatment of organic pollutants operating at temperatures in the range of 100–325 C at 5–200 bar pressures. The selectivity and efficient of catalysts were evaluated by total organic carbon (TOC) and high-performance liquid chromatograph and H2O is preferred.(HPLC). Ideally, the total mineralization of pollutants into CO2