|
|||||
|
|
| 脉冲激光法连续制备纳米铁溶胶及其分散稳定性的研究 | |
| 引用本文： | 章仪,陈文哲,章文贡.脉冲激光法连续制备纳米铁溶胶及其分散稳定性的研究[J].化学学报,2003,61(1):141-145. |
| 作者姓名： | 章仪 陈文哲 章文贡 |
| 作者单位： | 1. 福州大学材料学院,福州,350002;福建师范大学实验中心,福州,350007 2. 福州大学材料学院,福州,350002 3. 福建师范大学高分子研究所,福州,350007 |
| 基金项目： | 国家自然科学基金项目(No.50272014)、福建省自然科学基金重大项目(No.2001F005)及福建省科技厅,教育厅项目(No.K20075)资助. |
| 摘 要： | 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 |
| 修稿时间： | 2002年5月30日 |
Preparation and Disperse Stability of Nano-iron/Ethanol Sol Prepared by Pulsed Laser Ablation |
|
| Institution: | College of Material Science and Engineering, Fuzhou University, Fuzhou(350002);Institute of Polymer Science, Fujian Teachers' University,Fuzhou(350007) |
| Abstract: | 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. |
| Keywords: | pulsed laser nanomaterial iron sol disperse stability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《化学学报》浏览原始摘要信息 | |
| 点击此处可从《化学学报》下载免费的PDF全文 | |