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化学学报
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化学学报 ›› 2003, Vol. 61 ›› Issue (1): 141-145. 上一篇    

研究论文

脉冲激光法连续制备纳米铁溶胶及其分散稳定性的研究

章仪;陈文哲;章文贡   

  1. 福州大学材料学院,福州(350002);福建师范大学高分子研究所,福州(350007)
  • 发布日期:2003-01-15

Preparation and Disperse Stability of Nano-iron/Ethanol Sol Prepared by Pulsed Laser Ablation

Zhang Yi;Chen Wenzhe;Zhang Wengong   

  1. College of Material Science and Engineering, Fuzhou University, Fuzhou(350002);Institute of Polymer Science, Fujian Teachers' University,Fuzhou(350007)
  • Published:2003-01-15

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975

被引次数

108 | 14

提出脉冲激光轰击浸于流动液相中铁靶的新方法，连续制备得到纳米铁乙醇溶 胶并采用TEM，FT－IR，UV－vis对其进行表征。透射电镜发现其粒径分布在10－ 30nm，傅立叶红外光谱发现乙醇分子基团振动波长受纳米铁颗粒的影响，可见－紫 外光谱的分析结果表明其在237.82nm,272.93nm，308.43nm处附近有吸收。通过UV －vis及TEM研究了添加十二烷醇聚乙烯醚（OP－10）对纳米铁溶胶的分散稳定性的 影响。结果表明，加入0.10的十二烷醇聚氧乙烯醚对纳米铁颗粒的分散起到很好的 稳定作用。

关键词: 脉冲, 激光, 纳米相材料, 铁, 溶胶, 分散, 稳定性, 乙醇, 紫外分光光度法, 透射电子显微术

A novel method for successive preparation of nano metal sols by pulsed laser ablation at the interface of solid and flowing-liquid is developed and nano-iron/ethanol sol is obtained by this method. TEM results show that the iron particles' sizes are mostly between 10-30nm. It is found through FT-IR that the vibration of ethanol molecule groups in the sol is affected by the nano-iron particles. The UV-vis results show that there are one strong absorption peak at 237.82nm and two medium absorption peaks at 272.93nm and 308.43nm. The effect of polyoxyethylene (10) lauryl ether (OP-10) on the disperse stability of nano-iron/ethanol sol is studied by UV-vis and TEM. The results show that the best addition of OP-10 is 0.10% and it can effectively stabilize the dispersity of the nano-iron/ethanol sol.

Key words: PULSE, LASER, NANOPHASE MATERIALS, IRON, SOL, DISPERSION, STABILITY, ETHANOL, ULTRAVIOLET SPECTROPHOTOMETRY, TRANSMISSION ELECTRON MICROSCOPY

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