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In order to attain new functional nanomaterials with good magnetic property,multi-walled carbon nanotubes/hematite (MWNTs/α-Fe2O3)composites were synthesized using the co-deposition method.MWNTs/α-Fe2O3 composites were characterized by X-ray diffractometry(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),Raman spectroscopy and vibrating sample magnetometry(VSM).The experimental results show that the structure and magnetic properties of the MWNTs/α-Fe2O3 composites are related to the heat treatment temperature.MWNTs are modified byα-Fe2O3 nano-particles andα-Fe2O3 nanorods with a diameter of 10-50 nm after being treated at 450℃.When the heat treatment temperature exceeds 600 ℃,MWNTs are only modified by Fe3O4 particles.Furthermore,the MWNTs composites treated at 450 ℃and 600℃have good magnetic behaviour.
In order to gain new functionalized nanomaterials with good magnetic property, multi-walled carbon nanotubes / hematite (MWNTs / α-Fe2O3) composites were synthesized using the co-deposition method. MWNTs / α- Fe2O3 composites were characterized by X-ray diffractometry XRD, scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy and vibrating sample magnetometry (VSM). The experimental results show that the structure and magnetic properties of the MWNTs / α-Fe2O3 composites are related to the heat treatment temperature. MWNTs are modified by α-Fe2O3 nano-particles and α-Fe2O3 nanorods with a diameter of 10-50 nm after being treated at 450 ° C.When the heat treatment temperature exceeds 600 ° C., MWNTs are only modified by Fe3O4 particles. the MWNTs composites treated at 450 ℃ and 600 ℃ have good magnetic behaviour.