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Citation: Yu Ning-Ya, ng Yan-Jun, Wu Dong, Sun Yu-Han, Luo Qing, Liu Wu-Yang, Deng Feng. Organic-Inorganic Hybrid Mesoporous Materials Assembled from Sodium Silicate and Organotrialkoxysilane[J]. Acta Physico-Chimica Sinica, ;2004, 20(01): 81-84. doi: 10.3866/PKU.WHXB20040117 shu

Organic-Inorganic Hybrid Mesoporous Materials Assembled from Sodium Silicate and Organotrialkoxysilane

1.
State Key Laboratory of Coal Conversion, Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan　030001; State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan　430071

Received Date: 19 June 2003
Available Online: 15 January 2004

The MSU-typed mesoporous organosilica with organic methyl, vinyl, and phenyl functionals were prepared by using inexpensive sodium silicate and organotrialkoxysilane as the silica precursor and nonionic polyethyleneoxide AEO9[C11-15H23-31(CH2CH2O)9H] as the structure-directing agent. The resultant materials were characterized by powder X-ray diffraction (XRD), N2 sorptometry, high resolution transmission electron microscopy (HRTEM) and 29Si CP MAS-NMR. The results indicated that addition of sodium fluorite reduced the possibility of organotrialkoxysilane with small organic group entering the framework walls of the mesostructures at neutral condition. Moreover, pore diameter of material increased upon the increase of pH value.
- Organic functionalization;MSU mesoporous molecular sieves;Sodium silicate
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