The instant-direct-templating synthesis of phenyl-functionalized HOM-type mesoporous silica materials |
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Authors: | Xuemei Wang Honghong Rao Hui Chen |
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Institution: | College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, Gansu, PR China |
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Abstract: | Two kinds of novel phenyl-functionalized mesoporous silica materials have fabricated for the first time by an instant-direct-templating method using poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) and tetraethyl orthosilicate as surfactant template and precursor, respectively. Samples were characterized by Fourier transform infrared spectroscopy, small-angle X-ray diffraction, thermogravimetric analysis, N2 adsorption-desorption, scanning electron micrography and transmission electron micrography. The results show that phenyl groups are attached covalently to the pore wall of mesoporous materials after modification. The functionalized materials still preserve a desirable ordered hexagonal P6mm and cubic Ia3d mesophase structure, respectively, have high specific surface area, large pore volume and narrow pore size distribution. |
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Keywords: | Mesoporous materials Sol-gel chemistry X-ray diffraction Surface properties |
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