两步法和双模板法制备中空二氧化硅微球的比较  

Comparison of two-step method and dual template method for preparation of hollow silica microspheres

作　　者：李殷杰 王骥 潘超逸 冯立师 陈思莉 晏垚 王劲松 虢清伟 LI Yin-jie;WANG Ji;PAN Chao-yi;FENG Li-shi;CHEN Si-li;YAN Yao;WANG Jing-song;GUO Qing-wei(School of Civil Engineering,University of South China,Hengyang 421000,China;South China Institute of Environmental Sciences,Ministry of Ecology and Environment,Guangzhou 510530,China;Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China)

机构地区：[1]南华大学土木工程学院,湖南衡阳421000 [2]生态环境部华南环境科学研究所,广东广州510530 [3]中国科学院广州地球化学研究所,广东广州510640

出　　处：《应用化工》2020年第12期3064-3068,3073,共6页Applied Chemical Industry

基　　金：中央级公益性科研院所基本科研业务专项(PM-zx703-201905-143);湖南省自然科学基金(2018JJ2324)。

摘　　要：研究两步法制备中空二氧化硅微球,对比分析了两步法和双模板法(本课题组已有成果)在产物形貌、性能上的异同。结果表明,两种方法制备的中空二氧化硅微球在形貌上都具有规则球形和中空介孔结构,两步法产物具有更大的比表面积、更完美的球形和更宽的孔径分布,所得硅球官能团单一,模板去除更为彻底,微球纯度更高,制备周期短,过程简单,更为经济,而双模板法产物孔径分布窄,具有更好的介孔结构。Based on the previous achievements of our research group using dual template method to prepare HSMs,the preparation of HSMs by two-step method was studied.Then the similarities and differences in product morphology and performance of the two-step method and the dual template method were compared.The result shows that both the HSMs prepared by the two-step method and the dual template method have regular spherical and hollow mesoporous structures in appearance,and the product of two-step method has a larger specific surface area,a more perfect spherical shape and a wider pore size distribution,the functional groups of the silicon spheres are single,which means that the template removal are more thorough,and microspheres have higher purity.Generally is short,simple,more economical while the product of dual template method has a narrow pore size distribution and a better mesoporous structure.

关 键 词：中空二氧化硅 制备 两步法 双模板法 

分 类 号：TQ127.2[化学工程—无机化工] TQ424.26