Polyamide (PA) membranes with a thin selective layer have been widely investigated for desalination and water treatment. Several modifications have been proposed over the years to tailor the morphology of such thin film composite (TFC) membranes by altering the support and/or selective layers to achieve superior performance. In this study, a facile approach towards fabricating a highly wrinkled selective layer has been demonstrated through bio-inspired modification of the support layer with Y-type zeolites. Results showed that incorporating zeolites in a smaller dimension (200 nm) produced by a unique ball milling technique is favorable for a defect-free selective layer in comparison to larger commercial zeolites. PA membranes formed by the interfacial polymerization (IP) of Piperazine (PIP) and 1,3,5-Benzenetricarbonyl trichloride (TMC) revealed highly wrinkled morphology due to the presence of zeolites in the TFC interlayer. At optimum fabrication conditions, the membrane exhibited a fast transport of 22.5 ± 2.2 Lm^-2h^-1bar^-1 with a salt rejection of 48.6, 91.3, 99.1, and 99.5% for NaCl, MgCl₂, MgSO₄, and Na₂SO₄, respectively. Besides the unique preparation of zeolites in smaller dimensions, the novelty of this study lies in the facile membrane pretreatment before IP to achieve wrinkled PA membranes for enhanced nanofiltration performance.

具有薄选择性层的聚酰胺 (PA) 膜已被广泛研究用于海水淡化和水处理。多年来，人们提出了一些修改方案，通过改变支撑层和/或选择性层来定制这种薄膜复合（TFC）膜的形态，以实现卓越的性能。在这项研究中，通过用 Y 型沸石对支撑层进行仿生改性，证明了一种制造高度皱纹选择性层的简便方法。结果表明，与较大的商用沸石相比，通过独特的球磨技术生产的较小尺寸（200 nm）的沸石有利于形成无缺陷的选择性层。由哌嗪（PIP）和1,3进行界面聚合（IP）形成的PA膜，由于 TFC 夹层中存在沸石，5-苯三羰基三氯化物 (TMC) 显示出高度皱纹的形态。在最佳制造条件下，膜表现出 22.5 ± 2.2 Lm 的快速传输^-2 h ^-1 bar ^{-1，对 NaCl、MgCl} ₂、MgSO ₄和 Na ₂ SO ₄的脱盐率分别为 48.6、91.3、99.1 和 99.5%。除了较小尺寸沸石的独特制备之外，这项研究的新颖性还在于 IP 之前的简便膜预处理，以实现褶皱 PA 膜，从而增强纳滤性能。