Citation: Dong Liang, Yan Wang, Jing Hong Ma, Jian Hong Liu, Shu Wei Chen, Rui Feng Li. Synthesis and characterization of SBA-15 macrospheres with hierarchical pore structure[J]. Chinese Chemical Letters, ;2009, 20(11): 1371-1375. doi: 10.1016/j.cclet.2009.07.019 shu

Synthesis and characterization of SBA-15 macrospheres with hierarchical pore structure

Key Laboratory of Coal Science and Technology MOE, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China

Received Date: 15 January 2009

Fund Project: This project was supported financially by the National Basic Research Program of China ‘‘973'' (No. 2005CB221204) and the National Science Foundation of China (No. 50772070).

The new macroscopic-scale SBA-15 spheres with diameter of 0.2-0.5 mm are prepared by a sol-gel method, in which the tetrabutylorthosilicate (TBOS) is used as silicon source and triblock copolymer (P123) and polyoxyethylene octylphenol ether (OP10)are used as templates. The resulting spherical samples are characterized by XRD, N ₂ adsorption-desorption, TEM and SEM methods. The results show that the inner structure of SBA-15 macrospheres has macroporous channels (0.5 μm) and mesoporous skeleton (4-5 nm). These SBA-15 macrospheres with the hierarchical pore structure demonstrate high absorption capacity for Emodin molecules.
- Nanostructures,
- Sol-gel growth,
- Electron microscopy,
- Adsorption
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