BaFe(12)O(19)-chitosan Schiff-base Ag (I) complexes embedded in carbon nanotube networks for high-performance electromagnetic materials

The multiwalled carbon nanotubes/BaFe(12)O(19)-chitosan (MCNTs/BF-CS) Schiff base Ag (I) complex composites were synthesized successfully by a chemical bonding method. The morphology and structures of the composites were characterized with electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction techniques. Their conductive properties were measured using a four-probe conductivity tester at room temperature, and their magnetic properties were tested by a vibrating sample magnetometer. The results show that the BF-CS Schiff base Ag (I) complexes are embedded into MCNT networks. When the mass ratio of MCNTs and BF-CS Schiff base is 0.95:1, the conductivity, M(s) (saturation magnetization), M(r) (residual magnetization), and H(c) (coercivity) of the BF-CS Schiff base composites reach 1.908 S cm(−1), 28.20 emu g(−1), 16.66 emu g(−1) and 3604.79 Oe, respectively. Finally, a possible magnetic mechanism of the composites has also been proposed.