3D flower-like (MoS2/Fe3O4)@rGO nanocomposites with remarkable EMW absorption property

Electromagnetic pollution affects people's health and interferes with the normal operation of large equipment. Herein, a flower-like (MoS2/Fe3O4)@rGO nanocomposite with significant EMW absorption property were syn-thesized via hydrothermal and chemical precipitation methods. The reasonable combination of magnetic Fe3O4 with rGO and MoS2 optimizes the composite's electromagnetic parameters and improve the impedance matching. Consequently, the flower-like (MoS2/Fe3O4)@rGO composite has a minimum reflection loss of up to-64.05 dB at 1.83 mm and an effective absorption bandwidth of 7.34 GHz at 2.5 mm. It is believed that the good electromagnetic wave absorption ability of the material originates from the synergistic effect of various loss mechanisms among the different components of MoS2, Fe3O4 and RGO, as well as the magnetic loss induced by Fe3O4.