正硅酸乙酯
介孔材料
材料科学
分子筛
共聚物
环氧乙烷
化学工程
透射电子显微镜
介孔有机硅
筛子(范畴论)
环氧丙烷
扫描电子显微镜
介孔二氧化硅
吸附
纳米技术
有机化学
化学
催化作用
复合材料
聚合物
工程类
组合数学
数学
出处
期刊:Advanced Materials Research
日期:2012-07-01
卷期号:554-556: 620-623
被引量:1
标识
DOI:10.4028/www.scientific.net/amr.554-556.620
摘要
In this study, large pore size and highly ordered mesoporous molecular sieve SBA-15 was successfully synthesized in the acidic medium by using n-propanol as the pore-expanding agent, and tetraethyl orthosilicate (TEOS) as silicon source and poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) triblock copolymer (P123 triblock copolymer) as a template agent. The samples were characterized by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and Nitrogen Adsorption-Desorption. It is found that the particles of mesoporous molecular sieve SBA-15 have regular morphology and ordered pore structure, and also have high specific surface area, large pore size and pore volume.
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