Synthesis of MoS2/graphene hybrid supported Au and Ag nanoparticles with multi-functional catalytic properties

The detection and removal of nitroaromatic compounds is an. important issue. for environmental protection. In this study, a. hybrid of molybdenum disulfide (MoS2) and graphene (GR) was first synthesized using a facile hydrothermal method. Au and Ag nanoparticles were then deposited onto the surface of the. MoS2/GR hybrid with sodium citrate as the. stabilizer and reductant. Compared to using pure MoS2 as the support, the obtained Au (Ag)-MoS2/GR composites showed improved activity for electrochemical detection and chemical reduction of 4-nitrophenol. The activity enhancement appears to. be due to the addition of GR, which could improve the conductivity as well as provide more active sites. The successful synthesis of Au (Ag)-MoS2/GR composites could provide new multi-function catalysts for environmental protection.