The MOR/MCM-41 micro-mesoporous composite molecular sieve has been synthesized by using hydrothermal synthesis and crystallization synthesis methods in which alkali-treated zeolite Mordenite was used as silica-alumina source of mesoporous phase,and cetyltrimethyl-ammonium bromide(CTAB) was used as template respectively.The products were characterized by XRD,SEM and N2 adsorption/desorption methods.The effects of alkali concentration,alkali treatment time,crystallization temperature,crystallization time,crys...