Mesoporous Silica MCM-48 Membrane Synthesized on a Coarse-pore α-Al2O3 Ceramic Tube

Abstract

Abstract: A mesoporous MCM-48 membrane was synthesized on a coarse-pore a-alumina ceramic tube by hydrothermal treatment by using a cationic surfactant as the structure-directing agent under basic conditions.The products were characterized by small-angle X-ray diffraction, SEM measurements and N₂ adsorption experiments.The X-ray diffraction(XRD) results show that the membrane possesses a periodic mesostructure,which is typical for an MCM-48 material.The results of the SEM measurements indicate that MCM-48 grew in the pores of the support and formed a continuous membrane.The N₂ adsorption and desorption isotherms also show that the membrane is a typical mesoporous material with pore channel size of about 2.74 nm.

Key words: Mesoporous membrane, MCM-48, Synthesis, Alumina support

LIU Chun-yan, WANG Jin-qu. Mesoporous Silica MCM-48 Membrane Synthesized on a Coarse-pore α-Al₂O₃ Ceramic Tube[J]. Chemical Research in Chinese Universities, 2005, 21(2): 131-133.

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Mesoporous Silica MCM-48 Membrane Synthesized on a Coarse-pore α-Al₂O₃ Ceramic Tube

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