In-situ synthesis and characterization of nanocrystalline cellulose/magnetic nanospheres
Nanocrystalline cellulose/magnetic nanospheres were in-situ synthesized with laboratory-made reed pulp nanocrystalline cellulose (NCC). With atomic force microscope (AFM), transmission electron microscope (TEM), environmental scanning electron microscope (ESEM), magnetic particle solid content, porosity of nanocrystalline cellulose magnetic nanospheres, fourier transform infrared (FT-IR) spectroscopy, and X-ray diffraction (XRD), the results show that the magnetic particles is nano-Fe3O4 , which is fully dispersed in NCC through chemical bonding and physical adsorption with NCC to form nanocrystalline cellulose/magnetic nanospheres. Nanocrystalline cellulose/magnetic nanospheres are in-situ synthesized under optimal preparation conditions with NCC concentration of 1. 0%, stirring speed of 500 r/min, total iron ion concentration of 0.0065 mol/L(the mass fraction of magnetic particle theory quality is 5% to NCC). Nanocrystalline cellulose/magnetic nanospheres with vacuum freeze-drying has the magnetic properties of magnetized strength of 73. 39A · m2/kg (per gram ash) and coercivity of 1599. 96A/m.
in-situ synthesisnanocrystalline cellulose (NCC)magnetic nanospheresatomic force microscope
NETL
NSTL
万方数据
维普
