Electrodeposition of Gold Nanoparticles on Electrochemically Reduced Graphene Oxide for Sensitive Hydrazine Electrochemical Determination in Agriculture Wastewater

摘要

In this contribution, reduced graphene oxide-gold nanoparticles nanocomposite (RGO-AuNPs) wasprepared by electrochemical reduction of graphene oxide (GO) at an indium tin oxide (ITO) electrodefollowed by an electrodeposition process of loading AuNPs on its surface. The electrochemicalreduction and deposition progress were characterized by various techniques including SEM, XRD,UV-vis spectroscopy and Raman spectroscopy. As-prepared RGO-AuNPs modified ITO was thensuccessfully applied for electrochemical determination of hydrazine. Results indicate that the RGO is aperfect platform for AuNPs deposition. The composite material exhibits a superior electrocatalyticproperty towards detection of hydrazine. Moreover, the proposed sensor was successfully used for realwater sample analysis.