| 二氧化硅微球的制备及自组装 |
| |
| 引用本文： | 孙立国,赵冬梅,玄立春,张贞浴,栾羽佳,李佰林. 二氧化硅微球的制备及自组装[J]. 黑龙江大学自然科学学报, 2012, 29(1): 99-105,109 |
| |
| 作者姓名： | 孙立国 赵冬梅 玄立春 张贞浴 栾羽佳 李佰林 |
| |
| 作者单位： | 1. 黑龙江大学化学化工与材料学院,哈尔滨,150080
2. 黑龙江东方学院食品与环境工程学部,哈尔滨,150086 |
| |
| 基金项目： | 国家自然科学基金资助项目(20872030,20910402040);黑龙江省新世纪高等教育教学改革工程项目(2010年);黑龙江大学青年科学基金资助项目(QL200902号);2011年黑龙江大学创新实验室基金资助项目 |
| |
| 摘 要： | 先后通过一步法和改进的溶胶种子法制备了单分散二氧化硅(SiO2)亚微米微球,利用扫描电子显微镜(SEM)对样品的形貌进行了表征,同时系统地研究了氨水浓度、水的浓度、温度、硅源浓度和二次成核等不同反应条件对SiO2粒径和分散性的影响。最后采用缓慢干燥法和垂直沉积法对SiO2亚微米微球进行了自组装,用扫描电镜进行了表征。结果表明:所制备的SiO2亚微米微球尺寸均匀,单分散性好,符合自组装胶体晶体的要求。
|
| 关 键 词： | 二氧化硅微球 一步法 种子法 自组装 |
Preparation and assembly of SiO2 microspheres |
| |
| SUN Li-guo , ZHAO Dong-mei , XUAN Li-chun , ZHANG Zhen-yu , LUAN Yu-jia , LI Bai-lin. Preparation and assembly of SiO2 microspheres[J]. Journal of Natural Science of Heilongjiang University, 2012, 29(1): 99-105,109 |
| |
| Authors: | SUN Li-guo ZHAO Dong-mei XUAN Li-chun ZHANG Zhen-yu LUAN Yu-jia LI Bai-lin |
| |
| Affiliation: | 1(1.School of Chemistry and Materials Science,Heilongjiang University,Harbin 150080,China;2.Food and Environment Engineering Department,Heilongjiang East University,Harbin 150086,China) |
| |
| Abstract: | SiO2 microspheres were prepared via a one-step method and modified sol-gel seed growth successively.The morphology as-prepared microspheres were characterized using a scanning electron microscopy(SEM).The influence of different reaction conditions such as ammonia and silicon source concentration on the SiO2 size and dispersion were systematically inspected.Finally,the SiO2 microspheres were assembled by soft drying and vertical precipitated method and characterized by SEM.The results showed that the as-prepared SiO2 sub-micron microspheres had uniform size and good monodisperse which were in line with the requirements of self-assembled colloidal crystals. |
| |
| Keywords: | SiO2 microsphere one-step seed growth self-assembly |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
