Synthesis of Highly Ordered Donut-like Mesoporous Silica SBA-15

Abstract

Abstract: Highly ordered hexagonal mesoporous silica SBA-15 with tunable morphology such as donut-like has been synthesized through the cosolvent approach. Donut-like SBA-15 prepared by using DMF cosolvent shows highly ordered circle channels and large mesopore size of 9.9 nm and pore volume of 1.45 cm₃/g. Cosurfactant approach has also been used to control the morphology of SBA-15, resulting that highly ordered hard spheres (uniformed diameter—800 nm) mesoporous silica are formed. The morphology of mesoporous SBA-15 is much depended on the surface curvature energy of interface of inorganic silica and organic block copolymer species.

Key words: Synthesis, Mesoporous material, Molecular sieves

CLC Number:

O611.4

TrendMD:

SUN Jin-Yu, ZHAO Dong-Yuan . Synthesis of Highly Ordered Donut-like Mesoporous Silica SBA-15[J]. Chem. J. Chinese Universities, 2000, 21(1): 21.

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Synthesis of Highly Ordered Donut-like Mesoporous Silica SBA-15

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