The development of antifouling membranes to separate oil/water emulsions in various environmental approaches is urgently needed. This work reports on the development of a mixed matrix membrane (MMM) using polyvinylidene fluoride (PVDF) incorporated with self-synthesized hydrous manganese oxide (HMO). The filtration performance was compared to the pristine PVDF membrane in terms of flux and rejection efficiency. The membranes were characterized and evaluated under various operating parameters: different oil/water emulsion feed concentrations (50, 100, 500, and 1000 ppm), cycle stability, long-term membrane stability, and flux recovery ratio (FRR). When tested with a 1000-ppm oil/water emulsion feed concentration, the fabricated MMM exhibited higher flux performance of approximately eight folds compared to the pristine membrane, with the FRRs of 87% and 56%, respectively. After the eighth cycle, the performance of the MMM decreased gradually. However, the pristine membrane had completely collapsed at the end of the recyclability test. Furthermore, the modified PVDF/HMO MMM was physically stable for up to 6 h during the long-term stability study, indicating the potential of HMO in improving separation performance and the lifespan of MMM.

迫切需要开发在各种环境方法中分离油/水乳液的防污膜。这项工作报道了使用聚偏二氟乙烯（PVDF）和自合成的含水锰氧化物（HMO）的混合基质膜（MMM）的开发。就通量和截留效率而言，将过滤性能与原始PVDF膜进行了比较。在各种操作参数下对膜进行表征和评估：不同的油/水乳液进料浓度（50、100、500和1000 ppm），循环稳定性，长期膜稳定性和通量回收率（FRR）。用1000 ppm油/水乳液进料浓度进行测试时，制成的MMM的通量性能比原始膜高约8倍，FRR分别为87％和56％。在第八个周期后，MMM的性能逐渐下降。然而，在可回收性测试结束时，原始膜已完全塌陷。此外，改性后的PVDF / HMO MMM物理稳定性高达6 h在长期稳定性研究中，表明HMO在改善分离性能和MMM寿命方面具有潜力。