Reduced Graphene Oxide/Fe(3)O(4)/Polyaniline Ternary Composites as a Superior Microwave Absorber in the Shielding of Electromagnetic Pollution

[Image: see text] The present work is focused on fabrication of reduced graphene oxide/iron(II/III) oxide/polyaniline (RGO/Fe(3)O(4)/PANI) ternary composite by a hydrothermal method, its characterization, and application in the development of a high microwave absorbing shielding material. The RGO/Fe(3)O(4)/PANI composite showed dramatic enhancement of dielectric loss and magnetic loss compared to Fe(3)O(4)/PANI and RGO/Fe(3)O(4) binary composites. This is ascribed to the embedment of more heterostructure phases. As a result, RGO/Fe(3)O(4)/PANI showed remarkably high SE(T) (∼28 dB) through the absorption dominant mechanism. Our findings also showed maximum R(L) of Fe(3)O(4)/PANI, RGO/Fe(3)O(4), and RGO/Fe(3)O(4)/PANI in the range of 2–8 GHz corresponding to −25 to −35, −40 to −46, and approximately −64 dB, respectively. This is in all probability due to the good impedance matching between permittivity/permeability and dielectric/magnetic losses.