▎ 摘　　要

Nowadays, the increasing demand and the reduction of sources of drinking water are the big challenges for all industries. Therefore, studying and designing a high efficiency wastewater treatment device is essential. In this work, graphene oxide (GOx), Au nanoparticles decorated graphene oxide (AuGOx) and Ag nanoparticles decorated graphene oxide (AgGOx) electrode was applied to electro-oxidation of tetracycline, phenol and oxalate from both of deionized and real water samples. The GOx, AuGOx and AgGOx structures were synthesized through chemical approach. The structural properties of synthesized GOx, AuGOx and AgGOx were studied by FESEM and XRD. Results showed that the prepared structures had high density, aspect ratio and porosity. Electrochemical properties of filters were investigated by differential pulse voltammetry (DPV), electrochemical impedance spectroscopy and chronoampermetry techniques. The result showed that AgGOx/CNTs filter exhibited higher electro-oxidation rate than GOx, AuGOx filters. The DPV findings indicated that AgGOx/CNTs can be the proposed filter to remove phenol from real wastewater samples.