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

SUN Jin-Yu, ZHAO Dong-Yuan* (Department of Chemistry, Fudan University, Shanghai 200433, China)  
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.
【Fund】: 国家自然科学基金! (批准号 2 98730 1 2 )资助课题
【CateGory Index】: TQ424
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