Membrane performance is a region of growing research interest, where new functional nanomaterials are continually sought. In this study, nano zeolite type Y was prepared through a unique ball milling process. The produced zeolite has a high surface area, and abundant flow channels with a well-defined pore structure facilitating water passage, but at the same time restricting the passage of contaminants through the molecular sieving effect. Polysulfone (PSf) membranes were prepared through phase inversion with nano-Y loadings from 0.2 to 1.5 wt. %. Membranes were characterized for their structure, morphology, thermal stability and porosity. The developed membranes were tested for micellar enhanced ultrafiltration (MEUF) cationic dye rejections. The addition of nano-Y zeolite affected both the flux and dye rejection of the membranes. Optimum performance was obtained at 0.4 wt. % nano-Y loading, giving a rejection of 99.5% and a corresponding flux of 105 L.m^-2.h^-1. The static contact angle measurements indicate that membrane hydrophilicity increased with progressive nano-Y additions until 0.4 wt. %, after which the membrane showed no further change in hydrophilic character. The obtained effects of nano-Y addition on membrane performance was attributed to the well-connected 3-D microporous structure in which nano-Y zeolite provided preferential water pathways though nanoporous hydrophilic channels. Whereas, the high dye rejection was attributed to the fact that nano-Y zeolite is negatively charged and, as a result, provided resistance to the negatively charged micelles, and further restricted its passage through the microporous zeolite structure.

膜的性能是研究兴趣日益增长的一个领域，不断寻求新的功能纳米材料。在这项研究中，通过独特的球磨工艺制备了Y型纳米沸石。所生产的沸石具有高的表面积和丰富的流动通道，具有明确的孔结构，有利于水通过，但同时通过分子筛作用限制了污染物的通过。聚砜（PSf）膜通过相转化制备，纳米Y负载量为0.2至1.5 wt。％。表征膜的结构，形态，热稳定性和孔隙率。测试了开发的膜的胶束增强超滤（MEUF）阳离子染料排斥性能。纳米Y沸石的加入影响了膜的通量和染料排斥。在0.4 wt。％的条件下可获得最佳性能。％纳米Y负载，抑制率为99.5％，对应通量为105 Lm^-2 .h ^-1。静态接触角测量结果表明，随着逐步添加纳米Y，膜的亲水性增加，直至0.4 wt。％。％，此后该膜未显示出亲水特性的进一步变化。纳米Y添加对膜性能的影响归因于良好连接的3-D微孔结构，其中纳米Y沸石通过纳米孔亲水通道提供了优先的水通道。然而，高的染料排斥性归因于以下事实：纳米Y型沸石带负电，并且因此提供了对带负电荷的胶束的抵抗力，并进一步限制了其通过微孔沸石结构。