▎ 摘　　要

``The self-assembly among different two-dimensional materials could effectively improve the self-stacking ef-`fect and promote repeated reflection and refraction of incident electromagnetic wave (EMW). The polarization `effect caused by the heterogeneous contact also helps the attenuation of EMW. In this study, the in -situ hy-`drothermal approach was used to effectively fabricate petal-like CoFe-layered double hydroxide sheets `(CoFe-LDH) grown on reduced graphene oxide (RGO) functionalized by 4,4-diaminodiphenyl methane (DDM). `The microwave absorption properties of DDM-functionalized RGO/CoFe-layered double hydroxide composites `(DDM-RGO/LDH) were investigated. When the loading of DDM-RGO is 40.0 mg, the reflection loss reached `-60.0 dB at 5.28 GHz, resulting in great EMW absorption performance. The effective absorption bandwidth at `2.00 mm is 5.28 GHz. The results show that DDM-RGO/LDH has a wide microwave absorption bandwidth and `strong absorption capability, thus could be applied as an advanced EMW absorbing material.