Search for efficient wastewater treatment process is still upsurging because of water scarcity brought about by continuous industrialization. This includes efforts to discover the best materials to use for possible solutions to this global problem. In this work, application of three polyols as aqueous monomers were explored as material for fabricating nanofiltration membranes for dye desalination. These polyols are D-sorbiltol (DST), pentaerythritol (PET) and erythritol (ERT). Separately, they use to react with trimesoyl chloride (TMC) on top of polyethersulfone (PES) support through interfacial polymerization. ATR-FTIR and XPS analysis confirmed the successful formation of the polyester layer. Different monomers provide different surface hydrophilicity and surface charged. These properties were mostly depending on the number of reactive sites and the chemical structure of the aqueous monomer. DST consists of 6 hydroxyl groups and a linear structure, when reacts with TMC, it produces a dense selective layer with low permeation flux. ERT with only 4 hydroxyl groups and a linear structure, produced looser polyester layer. Compared with ERT, PET has a nonlinear structure with 4 hydroxyl groups, produced denser structure, because its structure has a less steric hindrance. Furthermore, TFC_ERT showed a superior chlorine resistance up to 24,000 ppm∙h. Therefore, the suitable monomer for dye desalination was ERT, where TFC_ERT delivered the highest water flux, high dye/salt selectivity and excellent chlorine resistance.

由于持续工业化带来的水资源短缺，寻找高效的废水处理工艺仍在热潮中。这包括努力发现用于解决这一全球问题的最佳材料。在这项工作中，探索了三种多元醇作为水性单体的应用，作为制造用于染料脱盐的纳滤膜的材料。这些多元醇是 D-山梨醇 (DST)、季戊四醇 (PET) 和赤藓糖醇 (ERT)。另外，它们用于通过界面聚合与聚醚砜 (PES) 载体顶部的均苯三甲酰氯 (TMC) 反应。ATR-FTIR 和 XPS 分析证实了聚酯层的成功形成。不同的单体提供不同的表面亲水性和表面带电性。这些性质主要取决于反应位点的数量和水性单体的化学结构。DST 由 6 个羟基和线性结构组成，与 TMC 反应时，会产生致密的选择层，具有低渗透通量。ERT 仅具有 4 个羟基和线性结构，产生较松散的聚酯层。与ERT相比，PET具有4个羟基的非线性结构，产生的结构更致密，因为它的结构空间位阻更小。此外，TFC PET具有4个羟基的非线性结构，产生更致密的结构，因为它的结构具有较小的空间位阻。此外，TFC PET具有4个羟基的非线性结构，产生更致密的结构，因为它的结构具有较小的空间位阻。此外，TFC_ERT表现出优异的耐氯性，高达 24,000 ppm∙h。因此，染料脱盐的合适单体是 ERT，其中 TFC _ERT提供最高的水通量、高染料/盐选择性和优异的耐氯性。