| Fe3O4/SiO2磁性微球的制备研究 |
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| 引用本文： | 张飞豹,胡自强,邱化玉,郭青林,金玲玲,徐洁,袁威,郑斌.Fe3O4/SiO2磁性微球的制备研究[J].杭州师范学院学报(自然科学版),2009,8(5):363-366. |
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| 作者姓名： | 张飞豹 胡自强 邱化玉 郭青林 金玲玲 徐洁 袁威 郑斌 |
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| 作者单位： | 张飞豹,胡自强,邱化玉,金玲玲,徐洁,袁威,郑斌(杭州师范大学有机硅化学及材料技术教育部重点实验室,浙江杭州,310012);郭青林(古代壁画保护国家文物局重点科研基地,甘肃教煌,736200) |
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| 基金项目： | 浙江省教育厅科研计划项目，古代壁画保护科研基地开放课题资助 |
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| 摘 要： | 报道了Fe3O4/SiO2纳米复合材料的可控合成方法.研究并探讨了乙醇-水体系配比及氨水和硅酸四乙酯的用量对纳米粒子形貌的影响,利用柠檬酸作分散剂,控制反应条件对Fe3O4纳米粒子进行表面修饰改性后,又对其进行SiO2包覆.然后运用X射线衍射仪（XRD）、透射电子显微镜（TEM）、红外（IR）对合成的纳米微粒的粒径、结构进行了表征.实验结果表明,产物为粒径均匀的单分散Fe3O4/SiO2复合纳米粒子,平均粒度约为100 nm.
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| 关 键 词： | 磁性 包覆 共沉淀 Fe3O4 |
Research on the Preparation of Magnetic Fe3O4/SiO2 Nanoparticles |
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| ZHANG Fei-bao,HU Zi-qiang,Qiu Hua-yu,GUO Qing-lin,JIN Ling-ling,XU Jie,YUAN Wei,ZHENG Bin.Research on the Preparation of Magnetic Fe3O4/SiO2 Nanoparticles[J].Journal of Hangzhou Teachers College(Natural Science),2009,8(5):363-366. |
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| Authors: | ZHANG Fei-bao HU Zi-qiang Qiu Hua-yu GUO Qing-lin JIN Ling-ling XU Jie YUAN Wei ZHENG Bin |
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| Institution: | 1. Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, China; 2. The Key Scientific Research Base of Conservation for Ancient Mural (Dunhuang Academy), SACH, Dunhuang 736200, China) |
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| Abstract: | The paper reports a controllable method to synthesize Fe3O4/SiO2 composites and studies the impact on the morphology of nano-particles by the ratio of ethanol water system and the amount of ammonia as well as TEOS. Fe3O4 nanoparticles are successfully synthesized via a chemical coprecipitation method with the citric acid as dispersing reagent and coated SiO2 after modification. Powder X-ray diffraction （XRD）, transmission electron microscopy （TEM） and Infrared （IR） tests are applied to investigate the crystalline and morphology of the Fe3 O4/SiO3 nanoparticles. The result shows that the products are monodisperse spherical particles with the average particle size of about 100 nm. |
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| Keywords: | Fe3O4 |
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