In this study, a novel PVC/tourmaline ultrafiltration membrane was fabricated by phase inversion method in order to improve anti-fouling performance and water quality. FESEM was used to examine the changes in the morphology of pure PVC and PVC/tourmaline hybrid membranes. The introduction of tourmaline resulted in the increase of porosity and mean pore size. EDX images indicated that tourmaline particles were homogeneously dispersed in the membranes when the amount were less than 1.0 wt%. The hybrid membranes exhibited lower contact angle (78.7°) and higher water flux (121.3 L/m 2 h) than the pure PVC membrane. The anti-fouling performance of the membranes were studied by filtration of BSA solution. The results demonstrated that the hybrid membrane with 1.0 wt% tourmaline particles exhibited the best anti-fouling performance and the highest BSA rejection. In addition, the pH and conductivity of the filtered water were measured by pH meter and electrical conductivity meter. And the results showed that the quality of the filtered water was improved after treating through the hybrid membranes.

中文翻译：

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电气石颗粒改性的PVC超滤膜的净水性能增强

本研究通过相转化法制备了新型的PVC /电气石超滤膜，以提高其防污性能和水质。FESEM用于检查纯PVC和PVC /电气石混合膜的形态变化。电气石的引入导致孔隙率和平均孔径的增加。EDX图像表明，当该量小于1.0wt％时，电气石颗粒均匀地分散在膜中。与纯PVC膜相比，杂化膜具有更低的接触角（78.7°）和更高的水通量（121.3 L / m 2 h）。通过过滤BSA溶液研究了膜的防污性能。结果表明该杂化膜具有1。0 wt％的电气石颗粒表现出最佳的防污性能和最高的BSA抑制率。另外，通过pH计和电导率仪测量过滤水的pH和电导率。结果表明，经过杂化膜处理后，滤水水质得到改善。