摘要
介绍了用双模板法制备全多孔硅胶纳米粒子,该法制得的纳米级二氧化硅微球孔径为18.3 nm,比表面积为589.5 m^(2)·g^(-1),孔隙率为2.7 cm^(3)·g^(-1),以制备的硅胶纳米粒子为硅源,利用聚合诱导胶体聚集法制备具有高比表面积的微米级全多孔二氧化硅微球。利用透射电子显微镜和扫描电子显微镜表征产品的形态,颗粒的尺寸分析在Mastersizer 2000上进行。结果表明,利用该方法能够制备具有较大介孔结构且具有较高比表面积的微米级全多孔二氧化硅微球,制得的二氧化硅微球具有较大介孔,为35.2 nm,比表面积达到756.2 m^(2)·g^(-1),孔隙率为2.0 cm^(3)·g^(-1)。
The study analyzes the preparation of porous silica gel nanoparticles by double template method.Through this method,the pore sizeof nanoparticle silica microspheres is 18.3 nm,the specific surface area is 589.5 m^(2)·g^(-1),and the porosity is 2.7 cm^(3)·g^(-1).The prepared silica nanoparticles is used as the silicon source,micrometer porous silica microspheres with high specific surface area are prepared by polymer-induced colloidal aggregation method.The morphology of the product is characterized by transmission electron microscopy and scanning electron microscopy,and the analysis of particle size is conducted with Mastersizer 2000.The results show that the microporous silica microspheres with large mesoporous structure and high specific surface area can be prepared by this method.The prepared silica microspheres have a large mesoporous size of 35.2 nm,the specific surface area is 756.2 m^(2)·g^(-1)and the porosity is 2.0 cm^(3)·g^(-1).
作者
张可擎
张黎君
齐若冰
Zhang Keqing;Zhang Lijun;Qi Ruobing(Zhejiang Technical Institute,Zhengzhou 450042,China)
出处
《黑龙江科学》
2024年第20期121-124,共4页
Heilongjiang Science
基金
河南应用技术职业学院2023年度校级科研项目(2023-KJ-57)
河南应用技术职业学院青年骨干教师培养计划(2022-GGJS-H003)。
关键词
二氧化硅微球
双模板法
聚合诱导胶体聚集法
硅胶纳米粒子
Silica microspheres
Double template method
Polymerization induced colloid aggregation method
Silica gel nanoparticles
