采用二次生长法在无有机模板剂条件下水热晶化制备高质量纯相ZSM-5沸石膜。考察了Na₂O/SiO₂摩尔比和NaF/SiO₂摩尔比对制备ZSM-5沸石膜及其结构、形貌与渗透汽化异丙醇脱水分离性能的影响。结果表明，在较低Na₂O/SiO₂摩尔比或NaF/SiO₂摩尔比下制备的沸石膜膜层结晶度低；而在较高Na₂O/SiO₂摩尔比或NaF/SiO₂摩尔比时，易转晶生成mordenite沸石晶体；仅在Na₂O/SiO₂摩尔比为0.17、NaF/SiO₂摩尔比为0.9时，制备出高质量纯相ZSM-5沸石膜，其膜层平整、连续、致密且结晶度高，该膜在渗透汽化异丙醇脱水中具有最佳的分离性能，其渗透通量为3.88 kg/（m²·h），水对异丙醇的分离系数达10 000以上。

High-quality pure phase ZSM-5 zeolite membranes are prepared through hydrothermal crystallization and secondary growth methods under situation of organo-template-free.The influences of the molar ratios of Na₂O/SiO₂ and NaF/SiO₂ on the preparation, structure, morphology and pervaporation performances of ZSM-5 zeolite membranes are investigated.The results show that ZSM-5 zeolite membranes prepared at lower molar ratio of Na₂O/SiO₂ or NaF/SiO₂ has a lower crystallinity in membrane layer, and mordenite crystals are easy to form at higher molar ratio of Na₂O/SiO₂ or NaF/SiO₂.Only when the molar ratios of Na₂O/SiO₂ and NaF/SiO₂ are 0.17 and 0.9, respectively, high-quality pure phase ZSM-5 zeolite membrane can be synthesized, with smooth, continuous, dense and high crystallinity.Such a ZSM-5 zeolite membrane shows high pervaporation performance in dehydration of isopropanol, with a flux of 3.88 kg·m^-2·h^-1 and a separation factor of higher than 10 000 for dehydration of isopropanol.