In this research, polyethylene (PE) membrane was prepared by the thermal induced phase separation and its surface was modified by the growth of zinc oxide (ZnO) crystals on the surface and inside of the pores by chemical bath deposition method. Effect of different coating parameters such as immersion time in ZnO precursor, precursor concentration and KMnO₄ concentration as a PE surface activator were investigated on ZnO layer growth to obtain a membrane with the least fouling against the protein and organic dye wastewater with suitable flux and rejection. The presence of grown ZnO nanoparticles on the membrane surface was confirmed by FTIR-ATR, SEM, XRD, contact angle and EDX analyses. Water flux of the membrane containing 0.5 M ZnO precursor concentration and 5 mM KMnO₄ solution reached to its maximum. The more addition of the precursor concentration was blocked membrane pores and reduced the pure water flux. Also, the analysis of the water contact angle showed an increase in the membrane's water hydrophilicity by increasing the ZnO growth. The BSA fouling test was carried out, which the results showed better performance in reducing fouling of the modified membranes rather than the uncoated membranes. Blue indigo dye was selected for rejection testing, which rejection of the layered membranes was more than 99%. All the modified membranes were better performance in filtration of the colored solution than the uncoated membrane. In addition, these membranes were compared by plasma modified membrane and the results showed that the ZnO grown membranes have better performance compared to the plasma modified membranes.

在这项研究中，通过热诱导相分离制备聚乙烯（PE）膜，并通过化学浴沉积法通过在孔的表面和内部生长氧化锌（ZnO）晶体来修饰其表面。研究了不同涂层参数的影响，例如在ZnO前体中的浸没时间，前体浓度和作为PE表面活化剂的KMnO ₄浓度对ZnO层生长的影响，从而获得对膜蛋白和有机染料废水污染最小的膜，并具有合适的通量和截留率。通过FTIR-ATR，SEM，XRD，接触角和EDX分析确认了膜表面上生长的ZnO纳米颗粒的存在。含有0.5 M ZnO前体浓度和5 mM KMnO ₄的膜的水通量解决方案达到了最大。增加的前体浓度会堵塞膜孔并降低纯净水通量。而且，水接触角的分析表明，通过增加ZnO的生长，膜的亲水性增加。进行了BSA结垢测试，结果表明在减少改性膜而不是未涂覆膜的结垢方面具有更好的性能。选择蓝色靛蓝染料进行排斥试验，其分层膜的排斥率超过99％。所有的改性膜在过滤有色溶液方面都比未涂覆的膜更好。此外，