High performance mordenite zeolite membranes were fabricated on four-channel Al₂O₃ hollow fiber substrates for the first time by using ball-milled mordenite particles as seeds. It was found that the particle size of seed played a vital part in the growth of membrane layers. The mordenite particles with a size of approximately 300 nm via ball milling enabled the growth of zeolite to form a uniform and defect-free zeolite membrane. The as-fabricated membranes showed high performance for isopropanol (IPA)/water mixtures separation. For IPA/H₂O (90/10 wt%) mixture dehydration at 75 °C by pervaporation, the permeation flux of 1.43 kg m⁻² h⁻¹ and the separation selectivity of >10000 were achieved. The influence of feed water content on the separation performance of mordenite membrane was studied in detail. In addition to good dehydration performance at a low feed water content, the mordenite zeolite membranes also demonstrated long time stable separation performance for high feed water content systems. Permporosimetry measurements and molecular simulations showed that, unlike NaA zeolite crystal, the adsorbate water affected the expansion/contraction of MOR zeolite crystal framework weakly. Our research shows that MOR zeolite membrane shows good potential for the industrial solvent dehydration applications.

以球磨的丝光沸石颗粒为种子，首次在四通道Al ₂ O ₃中空纤维基材上制备了高性能的丝光沸石沸石膜。发现种子的粒径在膜层的生长中起着至关重要的作用。通过球磨法，具有约300nm的尺寸的丝光沸石颗粒使沸石的生长能够形成均匀且无缺陷的沸石膜。制成的膜对异丙醇（IPA）/水混合物的分离具有很高的性能。对于IPA / H ₂ O（90/10 wt％）混合物通过全蒸发在75°C脱水，渗透通量为1.43 kg m ^-2  h ^-1分离选择性> 10000。详细研究了进料水量对丝光沸石膜分离性能的影响。除了在低进料水含量下具有良好的脱水性能外，丝光沸石分子筛膜还显示了对高进料水含量系统的长期稳定的分离性能。渗透比色法测量和分子模拟表明，与NaA沸石晶体不同，被吸附物水对MOR沸石晶体骨架的膨胀/收缩影响很小。我们的研究表明，MOR沸石膜在工业溶剂脱水应用中显示出良好的潜力。