▎ 摘　　要

Here, the Ag nanoparticles decorated graphene (AgNP@GNs) were fabricated by combing liquid phase exfoliation with in-situ solvent reduction method. Furthermore, the electrochemical sensitivity toward Cd2+ and Pb2+ ions was also investigated in detail. This AgNP@GNs presented the excellent electrical properties (2.5x10(4)S/m), meanwhile showed high electrochemical detection ability toward Cd2+ and Pb2+. The sensitivity of AgNP@GNs toward Pb2+ and Cd2+ was ca. 15.2 mu A/mu M (or 1246.4 mu A/mu g L-1) and 0.09 mu A/mu M (4.32 mu A/mu g L-1), respectively. The AgNP@GNs was also evaluated to electrochemical detection of Cd2+ and Pb2+ in real water, in which the recoveries (96 similar to 124%) were obtained. The work does not only provide a facile method to synthesize AgNP@GNs with good dispersion, but also showed good electrical properties for various applications.