| 超顺磁性纳米级Fe_3O_4粒子的制备与性能表征 |
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| 引用本文： | 王亚辉,马玉娟,邓红,李宁,严勃.超顺磁性纳米级Fe_3O_4粒子的制备与性能表征[J].农产品加工．学刊,2012(6):38-40,49. |
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| 作者姓名： | 王亚辉 马玉娟 邓红 李宁 严勃 |
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| 作者单位： | 陕西师范大学食品工程与营养科学学院,陕西西安,710062 |
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| 基金项目： | 西安市科技局农业攻关项目 |
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| 摘 要： | 在碱性条件下采用改良化学共沉淀法制备具有超顺磁性的Fe3O4纳米粒子,并用红外光谱仪、X射线衍射仪、透射电子显微镜和振动样品磁强计对所制得Fe3O4粒子进行表征。结果表明,该试验条件下制备的样品其红外光谱图和XRD谱图与标准Fe3O4粒子的物态和晶相结构基本一致;透射电镜表明制备出Fe3O4粒子成球性好,且大部分粒径在14 nm;磁化曲线也表明制备的Fe3O4粒子无剩磁和矫顽力,具有超顺磁性。
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| 关 键 词： | Fe3O4 纳米粒子 超顺磁性 |
Synthesis and Characterization of Super-paramagnetic Fe3O4 Nanoparticles |
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| WANG Ya-hui
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MA Yu-juan
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DENG Hong
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LI Ning
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YAN Bo.Synthesis and Characterization of Super-paramagnetic Fe3O4 Nanoparticles[J].Nongchanpin Jlagong.Xuekan,2012(6):38-40,49. |
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| Authors: | WANG Ya-hui MA Yu-juan DENG Hong LI Ning YAN Bo |
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| Institution: | (College of Food Engineering and Nutritional Science,Shaanxi Normal University,Xi’an,Shaanxi 710062,China) |
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| Abstract: | The super-paramagnetic Fe3O4 nanoparticles are synthesized via the method of co-precipitation,and their properties are characterized by some instruments of infra-radial(IR),X-radial diffraction(XRD),transmission electron mirror(TEM) and vibration sample magnetic meter(VSM).XRD and IR results reveal that the state of matter and crystal structure of the as-deposited Fe3O4 particles.TEM shows that the size of the prepared product is about 10 nm.Magnetization curves indicate that the as-deposited Fe3O4 particles without remanent magnetization(M)r and coercivity(Hc),and with superparamagnetism. |
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| Keywords: | Fe3O4 nanoparticles superparamagnetism |
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