| 微波水热法制备纳米Fe3O4粉体 |
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| 引用本文： | 刘文宝,李慧心,刘子全,张纪帅,贾兴冠,吕伟明,刘晓凯,姜付义.微波水热法制备纳米Fe3O4粉体[J].中国陶瓷,2012(4):7-9,18. |
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| 作者姓名： | 刘文宝 李慧心 刘子全 张纪帅 贾兴冠 吕伟明 刘晓凯 姜付义 |
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| 作者单位： | 烟台大学环境与材料工程学院 |
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| 基金项目： | 国家自然科学基金(50972123);山东省中青年科学家奖励基金(2008BS05006);山东省教育厅科技计划项目(J08LA11);烟台大学大学生科技创新项目(090713) |
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| 摘 要： | 通过微波水热法制备了纳米Fe3O4颗粒,并对其进行了Ostwald熟化处理。研究了油酸和氢氧化钠含量对纳米Fe3O4粒径大小以及分散性的影响。利用XRD、TEM等方式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,通过微波加热未经熟化的纳米Fe3O4粒子结晶度较低,平均粒径为6nm。经过在180℃下熟化8h后,转化为结晶度较高,分散性较好,平均粒径为7nm的纳米Fe3O4颗粒。
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| 关 键 词： | 纳米Fe3O4 微波加热 水热法 Ostwald熟化 |
MICROWAVE-ASSISTED HYDROTHERMAL SYNTHESIS OF Fe3O4 NANOPOWDERS |
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| Liu Wenbao,Li Huixin,Liu Ziquan,Zhang Jishuai,Jia Xing,Lv Weiming,Liu Xiaokai,Jiang Fuyi.MICROWAVE-ASSISTED HYDROTHERMAL SYNTHESIS OF Fe3O4 NANOPOWDERS[J].China Ceramics,2012(4):7-9,18. |
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| Authors: | Liu Wenbao Li Huixin Liu Ziquan Zhang Jishuai Jia Xing Lv Weiming Liu Xiaokai Jiang Fuyi |
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| Affiliation: | (School of Environment and Materials Engineering,Yantai University,Yantai 264005) |
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| Abstract: | Nanoparticles Fe 3O4 were prepared by microwave-assisted hydrothermal method,followed by Ostwald ripening procedures.The influence of oleic acid content and concentration of NaOH on the size and morphology of Fe 3O4 nanocrystals was studied.X-ray powder diffraction(XRD) and transmission electron microscopy(TEM) were used to characterize the structure and morphology of the products.The results revealed that the prepared Fe3O4 nanoparticles were inverse spinel structure.The nanoparticles were synthesized by microwave heating without heating followed by aging were of low crystallinity with an average diameter of about 6 nm.After aging at 180℃for 8 hour,those Fe 3O4 nanoparticles were transformed to higher crystallinity and better dispersion with an average diameter of about 7 nm. |
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| Keywords: | Fe3O4 Nanoparticles Microwave heating hydrothermal Ostwald ripening |
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