| SiO_2复合磁性纳米粒子的合成及表面性质的研究 |
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| 引用本文： | 王欢,张宝元,刘炜玮.SiO_2复合磁性纳米粒子的合成及表面性质的研究[J].化工时刊,2008,22(11):4-7. |
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| 作者姓名： | 王欢 张宝元 刘炜玮 |
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| 作者单位： | 1. 淮海工学院资产与设备管理处,江苏,连云港,222005
2. 淮海工学院化学工程学院,江苏,连云港,222005 |
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| 摘 要： | 采用溶胶凝胶法合成具有快速磁场响应能力的SiO2复合磁性纳米粒子。用表面电位仪研究了不同包覆层厚度对粒子表面性质的影响。用AFM对粒子的表面形貌进行了表征。并考察了不同SiO2包覆层厚度粒子的抗酸性。结果表明生长3层SiO2后复合粒子的表面完全被SiO2所包覆,粒子具有高的磁含量和快速的磁场响应能力,并具有高的抗酸性。
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| 关 键 词： | 磁性纳米粒子 二氧化硅 溶胶-凝胶 |
Synthesis and Characterization of Highly Magnetizable Composite Silica Nanoparticles |
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| Wang Huan,Zhang Baoyuan,Liu Weiwei.Synthesis and Characterization of Highly Magnetizable Composite Silica Nanoparticles[J].Chemical Industry Times,2008,22(11):4-7. |
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| Authors: | Wang Huan Zhang Baoyuan Liu Weiwei |
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| Affiliation: | Wang Huan, Zhang Baoyuan, Liu Weiwei ( Department of Laboratory and Equipment Management, Huaihai Institute of Technology, Jiangsu Lianyungang 222005 ; ＊ College of Chemical Engineering, Huaihai Institute of Technology, Jiangsu Lianyungang 222005) |
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| Abstract: | Magnetizable composite silica nanoparticles with high magnetization were synthesized by sol-gel method. Surface zeta-potential was used to characterize the particles surface property and AFM was used to evaluate the particle diameter. The acid resistance of the composite particles was also investigated. Experimental results shoued that the magnetizable composite nanoparticles were coated by the silica perfectly and the particles had high acid resistance and high magnetization. |
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| Keywords: | magnetic nanoparticles silica sol - gel |
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