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化学学报
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化学学报 ›› 2010, Vol. 68 ›› Issue (11): 1057-1062. 上一篇    下一篇

研究论文

FeOOH明胶复合纳米粒子的制备与表征

刘天晴*，宋丽娜   

  1. 扬州大学化学化工学院 扬州 225002
  • 投稿日期:2009-07-24 修回日期:2009-11-05 发布日期:2010-01-10
  • 通讯作者: 刘天晴 E-mail:tqliu@yzu.edu.cn
  • 基金资助:

    国家自然科学基金(No.20573091)和江苏省高校创新优秀梯队基金资助项目

Preparation and Properties of FeOOH-gelatin Complex Nano-particles

LIU Tian-Qing, SONG Li-Na   

  1. School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002
  • Received:2009-07-24 Revised:2009-11-05 Published:2010-01-10
  • Contact: Tian-Qing LIU E-mail:tqliu@yzu.edu.cn

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被引次数

14 | 1

采用两步法制备具有弱磁性的FeOOH纳米粒子和FeOOH明胶复合纳米粒子. 透射电镜、扫描电镜、红外光谱、X射线衍射和磁滞回线等测量结果表明: 在一定FeCl3/Fe2(SO4)3/H2O摩尔比条件下, 加入十二烷基苯磺酸钠(ABS)溶液, 可制备粒径为30～150 nm弱磁性FeOOH纳米粒子, 其磁性可达6.5×10－6 emu/g. 弱磁性FeOOH纳米粒子可被明胶包裹. 随着FeCl3/Fe2(SO4)3摩尔比减小或明胶浓度增加, 纳米球粒径增大, 磁性降低. 随着固化时间增加, FeOOH明胶复合纳米粒子的粒径先增大后减小.

关键词: FeOOH, 纳米粒子, 明胶复合纳米粒子, 磁性, 制备

The FeOOH-gelatin complex nanoparticles are prepared by two-steps method. The obtained results by using SEM, TEM, FT-IR, XRD and VSM, show that the nanoparticles are obviously enwrapped by gelatin. At a constant molar ratio of FeCl3/Fe2(SO4)3/H2O, the nanoparticles with 30～150 nm radius and weak magnetic property are prepared after sodium dodecylbenzenesulfonate (ABS) is added into FeCl3/Fe2(SO4)3/H2O system. The maximal magnetic intensity is about 6.5×10－6 emu/g. With the decrease of the molar ratio or the increase of gelatin content, the radius increases but the intensity decreases. The radius first enlarges and then reduces with solidification time.

Key words: FeOOH, nanoparticle, FeOOH-gelatin complex nanoparticle, magnetic property, preparation