| 溶剂热法制备纳米Fe3O4粉体 |
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| 引用本文： | 刘冰,李晓忆,刘文宝,姜付义.溶剂热法制备纳米Fe3O4粉体[J].烟台大学学报(自然科学与工程版),2013,26(2):142-146. |
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| 作者姓名： | 刘冰 李晓忆 刘文宝 姜付义 |
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| 作者单位： | 烟台大学环境与材料工程学院,烟台,264005 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 通过溶剂热法,以FeOOH作为前驱体,以油酸作为表面活性剂,以十八烯为溶剂,制备了纳米Fe3O4颗粒,研究了油酸和FeCl3用量、反应时间对纳米Fe3O4粒子的大小以及分散性的影响.结果显示,FeCl3用量的增加和反应时间的延长均可使Fe3O4粒子粒径增大,油酸用量的增加会导致Fe3O4粒子粒径先减小再增大.利用XRD、TEM等手段对所制备颗粒的结构、形貌进行了表征,结果表明,所制备的纳米Fe3O4粒子属于反尖晶石结构.FeCl3用量为0.003mol,油酸用量为13.5mL时(即Fe3+/油酸约为1/15),在230℃反应12h得到结晶度较高,分散性良好,平均粒径比较小的纳米Fe3O4粒子.
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| 关 键 词： | 纳米Fe3O4 溶剂热合成 分散性 |
Solvothermal Synthesis of Fe3O4 Nanopowders |
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| LIU Bing
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LI Xiao-yi
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LIU Wen-bao
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JIANG Fu-yi.Solvothermal Synthesis of Fe3O4 Nanopowders[J].Journal of Yantai University(Natural Science and Engineering edirion),2013,26(2):142-146. |
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| Authors: | LIU Bing LI Xiao-yi LIU Wen-bao JIANG Fu-yi |
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| Institution: | (School of Environment and Materials Engineering, Yantai University, Yantai 264005, China) |
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| Abstract: | Fe3O4 nanoparticles are synthesized by the thermal decomposition of FeOOH with oleic acid as surfactant and 1-octadecene as solvent. The influence of oleic acid and FeC13 content, reaction time on the size and morphology of Fe3O4 nanocrystals are studied. The results demonstrate that both the prolonging of reaction time and the increasing of FeCl3content can enlarge the magnetite particles. By increasing the oleic acid from 13.5 mL to 20 mL, the particle diameter first decreases and then increases. X-ray powder diffraction （XRD） and transmission electron microscopy （TEM） are used to characterize the structure and morphology of the products. The results reveal that the prepared Fe3O4 nanoparticles have an inverse spinel structure. The nanoparticles have high crystallinity, good dispersion and small average diameter can be obtained after reaction at 230℃ for 12 with 0. 003 mol FeCl3 and 13.5 mL oleic acid. |
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| Keywords: | Fe3O4 nanoparticles solvothermal method dispersibility |
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