In this work, novel 2-mercaptoethanol capped zinc sulfide (ZnS) quantum dots (QDs) embedded polyethersulfone (PES) nanocomposite membranes were fabricated which revealed wh improved antifouling properties and dye separation performance. A simple water-based precipitation approach was used to obtain 2-mercaptoethanol capped ZnS QDs at ambient temperature. The resulting membranes were fully identified with SEM, AFM, ATR-FTIR analyses, and also underwent porosity and contact angle tests. The developed nanostructure membranes exhibited a remarkable fouling reduction in bovine serum albumin (BSA) protein filtration, as featured by a declined average surface roughness. The flux recovery ratio (FRR) was improved considerably from 52.6% for the neat PES to 87.9% for nanocomposite membrane by inserting 2 wt.% ZnS QDs. The contact angle of membrane decreased, while porosity size was enlarged by increase of the QDs loading. The prepared nanocomposite membranes showed an increased Reactive Red 195 rejection (from 91.3% to 96.1%) and an enhanced water and dye solution flux (from 121 to 163 L m⁻² h⁻¹) with respect to the bare PES membrane. Thus, the results proved the potential of the novel QDs/PES membrane for the dye separation applications.

在这项工作中，新型的2-巯基乙醇封端的硫化锌（ZnS）量子点（QDs）嵌入聚醚砜（PES）纳米复合膜被制造出来，揭示了改进的防污性能和染料分离性能。一种简单的水基沉淀方法用于在环境温度下获得2-巯基乙醇封端的ZnS QD。所得膜通过SEM，AFM，ATR-FTIR分析得到了完全鉴定，并且还进行了孔隙率和接触角测试。发达的纳米结构膜在牛血清白蛋白（BSA）蛋白质过滤方面表现出显着的结垢减少，其特征在于平均表面粗糙度下降。助焊剂回收率（FRR）通过插入2 wt。％的ZnS QDs，纯PES的52.6％显着提高至纳米复合膜的87.9％。膜的接触角减小，而孔隙大小通过QDs负载的增加而增大。相对于裸露的PES膜，所制备的纳米复合膜显示出增加的活性红195排斥（从91.3％至96.1％）以及增强的水和染料溶液通量（从121至163 L m ^-2 h ^-1）。因此，结果证明了新型QDs / PES膜在染料分离应用中的潜力。