高等学校化学学报

高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (8): 1688.

• 研究论文 • 上一篇    下一篇

多元醇还原法制备片状六边形Fe3O4纳米颗粒

李芳, 杜雪岩, 杨瑞成   

  1. 兰州理工大学材料科学与工程学院, 甘肃省有色金属新材料省部共建国家重点实验室, 兰州 730050
  • 收稿日期:2010-12-03 修回日期:2011-06-02 出版日期:2011-08-10 发布日期:2011-07-19
  • 通讯作者: 杜雪岩 E-mail:duxy@lut.cn
  • 基金资助:

    国家自然科学基金(批准号: 51061009)和兰州理工大学博士基金(批准号: SB1200602)资助.

Synthesis of Monodisperse Fe3O4 Magnetite Schistic Hexagonal Nanocrystals by Polyol Reduction Method

LI Fang, DU Xue-Yan*, YANG Rui-Cheng   

  1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
  • Received:2010-12-03 Revised:2011-06-02 Online:2011-08-10 Published:2011-07-19
  • Contact: DU Xue-Yan E-mail:duxy@lut.cn
  • Supported by:

    国家自然科学基金(批准号: 51061009)和兰州理工大学博士基金(批准号: SB1200602)资助.

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被引次数

11

摘要： 在表面活性剂油酸和油胺，液相环境二苄醚体系中，利用多元醇还原法，采用1，2-十二烷二醇还原前驱体乙酰丙酮铁Fe(acac)3，通过表面活性剂、金属前驱体以及液相环境的共同作用，制备出了单分散片状六边形Fe3O4纳米颗粒。分析了表面活性剂以及还原剂多元醇对纳米颗粒尺寸及形貌的影响。TEM表征结果显示：与未使用表面活性剂的情况相比，油酸和油胺的加入抑制了颗粒的生长，使颗粒尺寸从24.2 nm降低到10.7 nm；颗粒形貌多样化，出现了片状六边形形貌的Fe3O4纳米颗粒。磁性能检测表明： Fe3O4纳米颗粒具有高饱和磁化强度（Ms=88 emu/g）和零剩磁的特点，有望作为磁标记材料应用在生物检测上

关键词: 多元醇还原法, 六边形Fe3O4纳米颗粒, 油酸, 油胺, 1,2-十二烷二醇, 磁标记

Abstract: Based on the cooperation of surfactants, metal precuesor and liquid environment, monodisperse nanoparticles of hexagonal Fe3O4 magnetite were prepared by 1,2-dodecanediol reduction of iron acetylacetonate[Fe(acac)3] in the presence of oleic acid and oleylamine. The effects of surfactants   reductant on the particles' size and morphology were examined. TEM results show that the use of oleic acid and oleylamine suppressed the growth of magnetite nanoparticles and made the particles size reduced from 24.2 nm to 7.6 nm; a variety of particles morphology arose and schistic hexagonal Fe3O4 nanoparticles were achieved. Magnetic properties show that the as-synthesized Fe3O4 nanoparticles possess features of high saturation magnetization Ms(88 A·m2/kg) and zero remanent magnetization Mr, facilitating their use as magnetic tags for biomedical applications.

Key words: Polyol reduction process, Hexagonal Fe3O4 nanoparticle, Oleic acid, Oleylamine, 1,2-Dodecanediol, Magnetic tag

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