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Ordered mesoporous aluminosilicate Al-SBA-15 materials with cage-like macropores have been synthesized by using micrometer-sized aluminum balls as an Al source,tetraethyl orthosilicate(TEOS) as a silica source,and triblock copolymer Pluronic P123 as a template.The resulting materials were fully characterized by XRD,N2 adsorption,SEM,TEM,ICP-AES,and 27Al MAS-NMR.The products(Al-SBA-15) have ordered two-dimensional(2-D) hexagonal mesostructures(space group p6mm).The calcined Al-SBA-15 materials exhibit disordered macropores with diameters of about 70―80 nm and ordered mesopores with a diameter of ～5 nm,a BET surface area of about 500 m2/g,Si/Al ratio of 40―80,and a ratio of tetrahedral Al to octahedral Al sites of about 2:1.This combination of properties gives these materials potential applications in areas such as adsorption,catalysis and separation.
Ordered mesoporous aluminosilicate Al-SBA-15 materials with cage-like macropores have been synthesized by using micrometer-sized aluminum balls as an Al source, tetraethyl orthosilicate (TEOS) as a silica source, and triblock copolymer Pluronic P123 as a template. The resulting Materials were completely characterized by XRD, N2 adsorption, SEM, TEM, ICP-AES, and 27Al MAS-NMR.The products have been ordered two-dimensional (2-D) hexagonal mesostructures (space group p6mm) The calcined Al-SBA-15 materials exhibit disordered macropores with diameters of about 70-80 nm and ordered mesopores with a diameter of ~5 nm, a BET surface area of about 500 m2 / g, a Si / Al ratio of 40-80 , and a ratio of tetrahedral Al to octahedral Al sites of about 2: 1.This combination of properties gives these materials potential applications in areas such as adsorption, catalysis and separation.