Because of having orderly hole compared with microporous molecular sieves, the inorganic mesoporous material can be the adsorption or catalytical reaction place of big molecule. Furthermore its potential usage in big molecule seperation and heavy oil catalys make mesoporous material becoming the hot spot of research. Using non-ionic surfactant,the Stucky of the California University synthesized a new kind of molecular sieves SBA-n. Because of its good structure function, excellent hydrothermal ...