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Supercritical carbon dioxide (SC CO 2 ) was used as carriers/solvent for “dry” alumination of mesoporous silica to prepare Al-MCM-41. The effect of aluminum on the structure and crystallinity of the materials was studied. Further, styrene monomer was impregnated into MCM-41 and Al-MCM-41 with the assistance of SC CO 2 , and then was polymerized in the substrates to prepare the composite...
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