Synthesis and Charaterization of 3-aminopropyl Modified Mesoporous Silica MCM-41 at Room Temperature

Under mild experiomental conditions, with 3-aminopropropyltriethoxysilane as the cou- pling agent, mesoporous molacular sieve MCM-41(Si/Al=35) was modified, and -(CH2)3NH2 or- ganic functional group was successfully introduced into the pore of the mesoporous sieve,the or- ganic/inorganic complex material MCM-(CH2)3NH2 was synthesized, and characterized by XRD, FTIR, DTA-TG, nitrogen adsorption-desorption at 77K and HREM. The results of the character- ization show that -(CH2)3NH2 not only gets into the modified inner wall of mesoporous MCM-41, but also makes MCM-41 remain its ordered pore structure.