Synthesis and Characterization of Sn-incorporated SBA-1 Cubic Mesoporous Molecular Sieves

The 3d-cubic Pm3n Sn-incorporated SBA-1 mesoporous molecular sieves were directly synthesized by the route of S~(+)X~(-)I~(+)under strongly acidic conditions,and characterized by various techniques.XRD showed that the synthesized mesoporous materials had a well ordered cubic structure.N_(2) adsorption/desorption measurements confirmed that the resultant samples had large mesopores(≈2nm) and high surface areas(1100m~(2)g~(-1)).UV-vis and FT-IR results revealed that incorporated tin species existed in a highly dispersed state and had tetrahedral coordination.SEM results revealed that the size of spherical Sn-SBA-1 was 2-4μm.