▎ 摘　　要

Perovskite-graphene nanocomposites of rare-earth LaFeO3-rGO and LaFeO3 nanoparticles are synthesized and characterized. The preparation was done by citrate sol-gel method. The structural characterization has been performed using XRD and FT-IR. Scanning electron microscope (SEM) and atomic force microscope (AFM) were used to analyze the morphology of the prepared nanocomposite. Vibrating sample magnetometer (VSM) was used to study the magnetic properties of the investigated samples. Introducing graphene to the structure results increase in M-S. Also, the optical and thermal properties have been measured and discussed, and the effect of graphene is observed where it decreases the band gap than reported for pure LaFeO3 nanoparticles.