| 正辛胺模板法制备SiO_2空心微球及其结构表征 |
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| 引用本文： | 王吉会,董青,毛晶.正辛胺模板法制备SiO_2空心微球及其结构表征[J].兵器材料科学与工程,2009,32(4):19-23. |
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| 作者姓名： | 王吉会 董青 毛晶 |
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| 作者单位： | 天津大学,材料科学与工程学院,天津,300072;天津大学,材料科学与工程学院,天津,300072;天津大学,材料科学与工程学院,天津,300072 |
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| 基金项目： | 天津市应用基础研究计划面上基金项目(06YFJMJC02500) |
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| 摘 要： | 以正辛胺为模板、正硅酸乙酯为硅源,在盐酸的催化作用下通过溶胶-凝胶法制备出圆形度高、分散性好、结构完整的SiO2空心微球;采用SEM、XRD、FTIR、BET、TG等对不同反应时间、反应温度、搅拌速度、盐酸含量等条件下SiO2空心微球的形貌、粒径、壳层厚度和结构进行分析与表征。结果表明,SiO2空心微球的平均粒径随反应温度和反应时间的增加而缓慢增大。SiO2空心微球的平均粒径为15~28μm,壳层厚度为3.1~4.0μm;壳层表面具有孔结构,比表面积为970~1244 m2/g,可几孔径为1.5~2.4 nm。
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| 关 键 词： | SiO_2空心微球 正辛胺模板 制备 表征 |
Preparation and characterization of hollow silica microspheres by octylamine templating |
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| WANG Jihui,DONG Qing,MAO Jing.Preparation and characterization of hollow silica microspheres by octylamine templating[J].Ordnance Material Science and Engineering,2009,32(4):19-23. |
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| Authors: | WANG Jihui DONG Qing MAO Jing |
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| Affiliation: | School of Materials Science and Engineering;Tianjin University;Tianjin 300072;China |
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| Abstract: | Hollow silica microsphere was prepared by sol-gel route with octylamine vesicles as core templates,TEOS as silica source and hydrochloric acid as catalyst.The surface morphology,mean diameter,shell thickness and structure of hollow silica microspheres under different reaction time,temperature,stirring speed and content of hydrochloric acid were examined and determined by employing SEM,XRD,FTIR,BET and TG methods.The results show that the mean diameter of hollow silica microspheres increases with the promoti... |
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| Keywords: | hollow silica microsphere octylamine template preparation characterization |
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