Method for synthesizing microspheres of high ordered mesoporous silicon dioxide |
Title： |
| Method for synthesizing microspheres of high ordered mesoporous silicon dioxide |
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Application Number： |
200610012285 |
Application Date： |
2006/06/16 |
Announcement Date： |
2006/12/06 |
Pub. Date： |
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Publication Number： |
1872684 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
C01B 37/02, C01B 39/00, C01B 33/18 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Yang Liming, Wang Yujun, Luo Guangsheng, Dai Youyuan |
Key Words： |
synthesizing, microspheres, high ordered, mesoporous silicon dioxide |
Abstract： |
This invention relates to a method for synthesizing highly ordered mesoporous SiO2 microspheres. The method comprises: (1) dissolving the templateing agent and water-soluble polymer in water in a container, and adding an acid to adjust the pH value to 0.3-4.0; (2) adding silicate ester to obtain a reactive solution, stirring at room temperature and hydrolyzing for 4-20h, transferring into a reaction kettle, and crystallizing at 80-120 deg.C for 24 h; (3) filtering, washing, drying, and torrefying in a muffle furnace at 550 deg.C for 6 h to obtain the final product. The obtained mesoporous SiO2 microspheres have good spherical shape, good dispersibility, uniform distribution of pore sizes and sphere sizes, high mechanical strength, large specific surface area and high order. The mesoporous SiO2 microspheres can be used as the carrier for high performance liquid phase chromatography filler. |
Claim： |
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