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中文摘要：
实验以聚乙二醇-6000为改性剂，采用化学共沉淀法制备Mn0.8Zn0.2Fe2O4纳米颗粒。并以XRD、TEM、IR、TG-DSC及VSM对其结构、形貌和磁性能进行表征。实验结果表明，制备的锰锌铁氧体纳米颗粒呈球形，平均粒径为80nm，饱和磁化强度达41emu／g。探索了锰锌铁氧体纳米颗粒在给定交变磁场下的体外升温作用，结果表明可以通过控制电流强度和磁性流体的含量来实现磁性流体的控温。
英文摘要：
Mn0.8 Zn0.2 Fe2O4 magnetic nanoparticles were synthesized by co-precipitation with PEG-6000 as the surface modifier. XRD, TEM, VSM and FT-IR were used to study the effect of the surfactants on crystal structure, crystalline size, microstructure and magnetic properties. The results demonstrated that the synthesized nanoparticles had an average size of 80 nm and the saturation magnetization reached 41 emu/g. The in-vitro heating experiments were performed, and the effect of Mn0.8Zn0.2Fe2O4 concentration and magnetic field intensity on the heating property were also investigated. Through heating test, it was found that the heating temperature can be controlled by adjusting the concentration of the magnetic fluid and the strength of electrical current.
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