PREPARATION AND INVESTIGATION OF COMPOSITE BASED ON REDUCED GRAPHENE OXIDE AND Fe₃O₄ NANOPARTICLES

Graphene oxide (GO) and composites based on it are often used to produce graphene-like materials by thermal or chemical reduction, and the reduction method strongly affects the properties of the materials. In this study, a new method was proposed to prepare a conductive composite based on reduced graphene oxide (RGO) with magnetite nanoparticles (NPs) with an average diameter of 18 nm dispersed on its surface. The method consisted of treating a GO-based composite with Fe₃O₄ on the its surface in supercritical isopropanol. The composites based on GO and RGO and magnetite NPs were investigated by FTIR spectroscopy, X-ray diffractive analysis and scanning electron microscopy. It is shown that the sample compact film of the RGO-based composite has specific surface resistivity is 22 Ohm/cm² and saturation magnetisation is 32.3 emu/g.