Preparation method of graphene-nano silver dispersion liquid

The invention belongs to the field of nano material functional material, particularly refers to a preparation method of a graphene-nano silver dispersion liquid. The preparation method comprises the steps of (1) preparing a graphene suspension liquid by liquid phase, (2) separation and purification of graphene dispersion liquid, (3) preparation of graphene-nano silver seed crystal liquid, and (4) chemical reduction preparation of graphene-nano silver dispersion liquid. The preparation method of the graphene-nano silver dispersion liquid has the advantages that the surface effect of the nano material is utilized, the adsorption effect makes nano-silver particles preferentially adsorbed on the surface of a graphene sheet layer, so that the graphene-nano silver dispersion liquid with good electrical conductivity and good dispersion is prepared, and the preparation method of the graphene-nano silver dispersion liquid is simple in procedure, easy to operate and high in production efficiency. 本发明属于纳米材料功能材料领域，特指种石墨烯