Preparation of magnetic chitosan composite nanomaterials

In order to prepare a new kind of material for sewage treatment,chitosan composite nanofiber membranes were prepared by electrospinning,and then immersed in the magnetofluid of Fe3O4 nanoparticle to obtain magnetic composite nanomaterials.The process and properties of the chitosan nanometer magnetic materials were characterized by scanning electron microscopy(SEM),Fourier transformed infrared spectroscopy(FT-IR),X-ray diffraction(XRD),etc.The results showed that the chitosan composite nanofiber with even diameter distributions could be prepared by selecting suitable solution compositions,the composite showed surplus paramagnetic characteristics with the addition of Fe3O4 nanoparticles without changing its chemical structure,and its saturation magnetization was up to 15.4 emu/g.