高等学校化学学报

高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (3): 552.

• 研究论文 • 上一篇    下一篇

不同形貌的Fe3O4微-纳米粒子的溶剂热合成

高倩1,2,张吉林1,洪广言1,倪嘉缵1   

  1. 1.  中国科学院长春应用化学研究所, 长春 130022; 
    2. 河北工业大学化工学院, 天津 300130
  • 收稿日期:2010-10-11 修回日期:2010-12-09 出版日期:2011-03-10 发布日期:2011-02-23
  • 通讯作者: 洪广言 E-mail:gyhong@ciac.jl.cn
  • 基金资助:

    国家自然科学基金(批准号: 20871083)资助.

Solvothermal Synthesis of the Magnetite Micro-nano Particles(Fe3O4) with Different Morphologies

GAO Qian1,2, ZHANG Ji-Lin1, HONG Guang-Yan1*, NI Jia-Zuan1   

  1. 1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
    2. School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
  • Received:2010-10-11 Revised:2010-12-09 Online:2011-03-10 Published:2011-02-23
  • Contact: HONG Guang-Yan E-mail:gyhong@ciac.jl.cn
  • Supported by:

    国家自然科学基金(批准号: 20871083)资助.

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被引次数

37

摘要： 以FeCl3?6H2O为铁源，用乙二醇或1,2丙二醇为溶剂，PEG为表面活性剂，以及NaOH或KOH为碱源，采用溶剂热法，制备出具有亲水性、分散性较好、超顺磁性和形貌各异的Fe3O4微、纳米颗粒，并对其形貌、结构和磁性进行了表征. 结果表明，产物是均为立方晶系Fe3O4，其颗粒尺寸从20nm-600nm可调. 我们观察到碱源的种类和用量、反应时间、溶剂等对产物形貌的影响，其中碱的用量影响最大. 本文对不同形貌Fe3O4的形成过程进行了探讨，并提出了合理的解释. 所得到的室温下呈现超顺磁性的Fe3O4粒子可以初步满足了生物医学中的应用.

关键词: 关键词： Fe3O4, 溶剂热法, 形貌, 磁性纳米粒子

Abstract: Abstract: The micro-nano magnetite particles (Fe3O4) with hydrophilic, good distribution, superparamagnetic and different shape were synthesized using a solvothermal method, where FeCl3 ? 6H2O as iron source, ethylene glycol or 1,2-propylene glycol as solvent, PEG as surfactant, and NaOH or KOH as the alkali source. Their morphologies, structures, and magnetism were characterized. The results showed that the products all were cubic phase of Fe3O4, with an adjustable particle size from 20nm to 600nm. We observed that the influences on the morphology of the alkali type and amount, reaction time, solvent and other conditions and found that the amount of alkali was the greatest impact. In this paper, the processes of formation of different morphologies Fe3O4 were discussed, and a reasonable mechanism is also briefly suggested. The resulting Fe3O4 particles with superparamagnetic property at room temperature can basically to meet the biomedical requirements.

Key words: Keywords: Magnetite, Solvothermal Method, Morphology, Magnetic Nanoparticles

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