Preparation and Magnetic Property of KGM/Fe3O4 Nanocomposites

Novel organic-inorganic nanocomposites based on magnetite nanoparticles and konjac glucomanan (KGM) were prepared using KGM as template, FeCl3 center dot 6H(2)O, FeCl2 center dot 4H(2)O, and NH3 center dot H2O as the starting materials. The morphology and phase structure of as-prepared nanocomposites and pure magnetite nanoparticles were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The existence of KGM impacted the morphology and size of the particles. The sample demonstrated a typical ferromagnetic behavior from magnetic measurement, and the procedure we reported here is green and environment-friendly compared with common previous protocols. These Fe3O4 nanoparticles and KGM/Fe3O4 nanocomposites are expected to be applied in fields such as magnetic separation, electron-magnetic shielding, and so on.