Journal of Jishou University(Natural Sciences Edition)

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Size-Controlled Synthesis and Magnetite Recovery of Superparamagnetic Fe3O4 Microparticles

(1.吉首大学物理与机电工程学院,湖南 吉首 416000;2.吉首大学矿物清洁生产与绿色功能材料开发湖南省重点实验室,湖南 吉首 416000)   

  1. (1.College of Physics and Electromechanical Engineering,Jishou University,Jishou 416000, Hunan China;2.Key Laboratory of Mineral Cleaner Production and Exploitation of Green Functional Materials of Hunan Province,Jishou University,Jishou 416000,Hunan China)
  • Online:2016-09-25 Published:2016-10-01


Fe3O4 microparticles of different size were synthesized by a novel solvothermal method,using ethylene glycol as solvent. It is found that the nucleation and growth of  Fe3O4can be effectively controlled through adjusting the concentrations of water,polyethylene glycol 20000,and iron ion,which creates the possibility of controlling the size of Fe3O4 in a wide range effectively.Besides,Fe3O4 microparticle of larger size exhibits more excellent magnetic recycling property.As discussed above,the effective control of Fe3O4 particle is very important to expand its application in magnetite recovery of nanomaterials.

Key words: superparamagnetism, Fe3O4, nanomaterials, magnetite recovery

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