A METHOD FOR PREPARING A GRAPHENE-BASED INKJET INK

摘要

The present invention relates to a method for preparing a graphene-based inkjet ink characterised by the steps of: exfoliating graphene oxide (GO) in deionised water at 25 - 30°C (100); reducing the GO and silver nitrate (AgNOs) at 25°C to 30°C to form a reduced GO (rGO) and silver (Ag) mixture (200); reacting the rGO and Ag mixture to form a rGO/Ag nanoparticles (rGO/Ag-NPs) mixture (300) without agitation at 25°C to 30°C; sonicating the rGO/Ag-NPs mixture (400) at 65°C to 68°C; centrifuging the rGO/Ag-NPs mixture to produce the graphene- based colloidal solution (500); and dispersing the graphene-based colloidal solution in a dispersant solution to produce the graphene-based inkjet ink (600).