Modification of MSU-x molecular mesoporous sieve

This study emphasize on the modification of MSU-x molecular mesoporous sieve with tungstate ammonia and sulfate aluminum as W,Al source.In netural conditions,fatty alcohol polyoxyethylene ether is used as template,tetraethyl orthosilicate as silica source,the modified molecular mesoporous sieves W-MSU-x,Al-MSU-x were prepared.The characterizations of molecular mesoporous sieves modified by,W,Al are investigated by the technics of X Ray Diffraction,N2 adsorption-desorption isotherms,FT-IR spectra.The results show that,W,Al do not destroy the framework of molecular mesoporous sieves,rather,the order degree is improved by W loaded; Al atom change the pore performance of molecular mesoporous sieves,pore diameter is minimized,surface area is increased as well.