CAJ | 학술논문

　　利用油酸对磁性 Fe3O4纳米粒子进行表面修饰，重点探讨了油酸修饰对磁性 Fe3O4纳米粒子性能的影响，并对样品进行了 XRD、IR、VSM 等表征。样品表征表明：在实验条件下油酸成功包覆在磁性 Fe3O4纳米粒子的表面；油酸的表面修饰未改变 Fe3O4磁性纳米粒子为晶体结构，经修饰后 Fe3O4磁性纳米粒子粒径约为21nm；经修饰后的磁性 Fe3O4纳米粒子饱和磁化强度稍降低，但仍在50emu/g 以上，仍具有超顺磁性。
　　이용유산대자성 Fe3O4납미입자진행표면수식，중점탐토료유산수식대자성 Fe3O4납미입자성능적영향，병대양품진행료 XRD、IR、VSM 등표정。양품표정표명：재실험조건하유산성공포복재자성 Fe3O4납미입자적표면；유산적표면수식미개변 Fe3O4자성납미입자위정체결구，경수식후 Fe3O4자성납미입자립경약위21nm；경수식후적자성 Fe3O4납미입자포화자화강도초강저，단잉재50emu/g 이상，잉구유초순자성。
This paper introduces the preparation of Fe3O4 nanoparticle coated with oleic acid. The samples is measured by XRD ,FT - IR and VSM. The results shows that Fe3O4 nanoparticle is coated with oleic acid successfully, and the crystal structure is not changed with the modification of oleic acid. The average size and saturation magnetization of the modified Fe3O4 nanoparticle is about 21nm and 50.0emu/g respectively.