Synthesis and characterization of surface-modified and organic-functionalized MCM-41 type ordered mesoporous materials

摘要

A new and efficient method for the preparation ofMCM-41 type ordered mesoporous phases using phosphate aspromoter under reflux conditions is reported. The variousmesoporous materials studied were : silica (Si-MCM-41),alumino-silicate (Al-MCM-41), and titanium-silicate (Ti-MCM-41). Our concept of promoter-assisted synthesis of zeolites andrelated microporous materials was found to be applicable in thesynthesis of ordered mesoporous materials as well. The additionof small catalytic quantity of phosphate ions (PO43-), used aspromoters, significantly reduced the synthesis time (by a factor of3-4) of all these mesoporous materials. The synthesis of newMCM-41 type organic-inorganic composite materials withunique properties is also reported.