The fabrication of new membranes with improved performance for water desalination and other treatment is still an important strategy to overcome worldwide water scarcity and quality problems. In this study, cellulose acetate propionate/halloysite nanotube (HNT) composite membranes were prepared using the phase‐inversion process, applying different concentrations of HNTs ranging from 0 to 0.11 wt%. The composite membranes' physicochemical properties were examined using thermogravimetric analysis, field emission scanning electron microscopy, atomic force microscopy, Fourier transform infrared spectroscopy, and contact angle measurements. A dead‐end filtration system was applied when examining the membranes' performance. The results showed clear improvements in the membrane hydrophilicity, permeability, salt rejection, antifouling, and stability properties with the addition of HNTs. The contact angle decreased from 69° to 38°, while the water uptake increased from 18% to 33%. Moreover, the permeation flux increased from 8 to 23 L m⁻² h⁻¹ at 1 bar, corresponding to an improvement of about 188%. The membrane containing 0.08 wt% of HNTs showed the optimal results, exhibiting salt rejection of 85% for sodium chloride and 95% for magnesium sulfate, corresponding to improvements of 109% and 154%, respectively, in addition to an improved flux recovery of 80% determined after 120 minutes.

中文翻译：

---

新型醋酸丙酸铝盐复合纤维素膜，具有更高的渗透通量，脱盐率和防污性能

制备具有改善的性能以用于水脱盐和其他处理的新膜仍然是克服全球水资源短缺和质量问题的重要策略。在这项研究中，采用相转化工艺制备了醋酸丙酸纤维素/卤代亚硝酸盐纳米管（HNT）复合膜，使用了0至0.11 wt％的不同浓度的HNT。使用热重分析，场发射扫描电子显微镜，原子力显微镜，傅里叶变换红外光谱和接触角测量来检查复合膜的理化性质。检查膜的性能时，采用了死角过滤系统。结果表明，膜的亲水性，渗透性，脱盐，防污，和HNT的稳定性。接触角从69°减小到38°，而吸水率从18％增加到33％。此外，渗透通量从8 L m增加到23 L m在1巴下^-2 h ^-1，对应于约188％的改善。含有0.08 wt％的HNT的膜表现出最佳的结果，对氯化钠和硫酸镁的脱盐率分别为85％和95％，分别相当于分别提高了109％和154％，此外还提高了80％的通量回收率。 120分钟后确定％。