| 磁性Fe3O4明胶复合纳米粒子的制备与表征 |
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| 引用本文： | 蔡梦军,朱以华,杨晓玲.磁性Fe3O4明胶复合纳米粒子的制备与表征[J].华东理工大学学报(自然科学版),2006,32(3):290-295. |
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| 作者姓名： | 蔡梦军 朱以华 杨晓玲 |
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| 作者单位： | 1. 华东理工大学国家超细粉末工程研究中心,上海,200237
2. 华东理工大学超细材料制备与应用教育部重点实验室 |
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| 基金项目： | 国家自然科学基金(20276019,20236020)，国家863计划项目(2002AA302208)，上海市重点实验室专项基金(04DZ05622)，上海市纳米专项(0243nm069)资助项目 |
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| 摘 要： | 用化学共沉淀法制备磁性Fe3O4纳米粒子,然后用异丙醇为凝聚剂采用单凝聚法制备磁性Fe3O4明胶复合纳米粒子。考察了明胶浓度与异丙醇的体积以及Fe3O4含量对粒径分布及性能的关系。采用透射电子显微镜和Zetasizer粒度分析仪测量磁性明胶复合纳米粒子的平均粒径,X射线衍射仪和红外光谱以及热重及差热分析进行结构和热稳定分析。结果表明磁性Fe3O4明胶复合纳米粒子中的Fe3O4纳米粒子被明胶所包覆,而且粒径很小,具有良好的热稳定性。
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| 关 键 词： | 磁性Fe3O4微球 明胶 复合纳米粒子 制备 表征 |
| 文章编号： | 1006-3080（2006）03-0290-06 |
| 收稿时间： | 2005-03-08 |
| 修稿时间： | 2005年3月8日 |
Preparation and Characterization of Magnetic Fe3O4 Gelatin Composite Nanoparticles |
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| CAI Meng-jun,ZHU Yi-hua,YANG Xiao-ling.Preparation and Characterization of Magnetic Fe3O4 Gelatin Composite Nanoparticles[J].Journal of East China University of Science and Technology,2006,32(3):290-295. |
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| Authors: | CAI Meng-jun ZHU Yi-hua YANG Xiao-ling |
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| Abstract: | Magnetic Fe_3O_4 nanoparticles were prepared first by co-precipitation method,and then magnetic Fe_3O_4 gelatin composite nanoparticles were prepared by the coacervated method using isopropanol as caocervation reagent.The effects of gelatin concentration,isopropanol volume and Fe_3O_4 content on particle size and properties were investigated.The average size of the composite nanoparticles was estimated from the measurement results of transmission electron microscopy(TEM) and zetasizer particle size analyzer;its structure and thermal stabilization were analyzed by X-ray powder diffraction(XRD),infrared spectroscopy(IR),thermogravimetry(TG) and differential thermal analysis(DTA).The results show that magnetic Fe_3O_4 gelatin composite nanoparticles is of a membrane enwrapping magnetic Fe_3O_4 nanoparticles structure with a small particle size and a favorable thermal stabilization. |
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| Keywords: | magnetic Fe_3O_4 microspheres gelatin composite nanoparticles preparation characterization |
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