Chromium-doped MoS2 grown on rGO nanosheet for enhanced microwave shielding performance

Abstract

We have prepared Cr-doped MoS2/reduced graphene oxide (Cr@MoS2/rGO) composite using two-step hydrothermal route for microwave shielding performance. The crystal structure, surface morphology, and shielding effectiveness of the Cr@MoS2/rGO composite were characterized by various techniques. The Cr-doping concentration creates more disorder degree and lattice distortion as compared to pure MoS2/rGO composite. It is also improves the migration of charge carrier and hopping efficiency of the electron from the multi-interfaces. The total shielding effectiveness (SET) value of 10% Cr@MoS2/rGO is obtained ∼35.27 dB, whereas pure MoS2/rGO displayed low SET ∼ 25.75 dB with 1.8 mm thickness. The results suggest that such type of materials can be widely used in radar wave absorption and environmental pollution cleaning.