Modified chemical coprecipitation of magnetic magnetite nanoparticles using linear–dendritic copolymers

Green Chemistry Letters and Reviews

Zohre Zarnegar¹ 

关键词: Magnetic;    magnetite;    Fe3O4 nanoparticles;    coprecipitation;    linear–dendritic;   

DOI  :  10.1080/17518253.2017.1358769

学科分类：化学（综合）

来源: Taylor & Francis

【 摘 要 】

In this investigation, magnetite nanoparticles (Fe3O4 NPs) with a diameter of 5–10 nm were synthesized by coprecipitation from an alkaline solution of ferrous/ferric mixed salt-solution in the presence of copolymers. In this process, linear–dendritic copolymers containing a linear poly (ethylene glycol) core and dendritic poly (citric acid) arms were used as the stabilizer. The Fe3O4 NPs were characterized by transmission electron microscopy, energy-dispersive spectra, X-ray powder diffraction, field emission scanning electron microscopy, Fourier transform infrared spectrometer, and vibrating sample magnetometer. Compared to classical coprecipitation, the results showed that uniform, ultrafine, nearly spherical, and high purity nano-magnetite particles with better magnetic properties could be prepared by this method.

【 授权许可】

Unknown