Durian-like Fe3O4/TiO2 nanostructures with high performance of microwave absorption

Novel durian-like nanostructures, composed of Fe₃O₄ “durian core” and TiO₂ “durian thorns”, have been successfully prepared by combining a simple solvent-thermal route and post-temperature treatment. Especially, the TiO₂ thorns-like structure could be grown on the Fe₃O₄ microspheres by the post-temperature treatment. The surface morphology can be changed from core-shell structure to durian-like structure. The introduction of TiO₂ brought Fe₃O₄ microspheres a better dielectric properties, leading to the microwave absorbing properties improvement. Furthermore, the maximumre flection loss of durian-like Fe₃O₄/TiO₂(-15.71 dB) was lower than that of Fe₃O₄ (-10.04 dB). It may be due to the special durian-like structure. These results indicated that the as-synthesized durian-like Fe₃O₄/TiO₂ microstructures might be attractive candidate materials for the microwave absorption applications.