The polymer precursor plays a vital role in the membrane structure, as well as its permeance and rejection capability. In general, the polymer utilized in research is purified many times to obtain a higher purity, thus resulting in expensive and energy-consuming raw materials for membranes. Herein, we propose a facile method to prepare a nanofiltration hollow fiber membrane via reclaimed rubber recovered from waste tires as a precursor. The permeation tests reveal that the rubber-derived membrane with 12 wt% precursor concentration and three internal coating times exhibited the best performance for dye removal, with a methyl blue rejection rate of up to 93.1%. After three further filtration cycles, the permeate permeance obtained from the R1-12-L3 membrane could be maintained at 8.3 LMH/bar with a methyl blue rejection rate of 98.1%. These experimental results indicate that the rubber-derived hollow fiber membrane could be a feasible alternative for wastewater purification due to its low-cost, high-performing, and self-cleaning properties.

聚合物前体在膜结构及其渗透和排斥能力中起着至关重要的作用。通常，将研究中使用的聚合物进行多次纯化以获得更高的纯度，从而导致生产昂贵且耗能的膜原料。在此，我们提出了一种容易的方法来制备纳米过滤的中空纤维膜通过从废轮胎中回收的再生橡胶作为前体。渗透测试表明，具有12 wt％的前体浓度和3次内部涂覆时间的橡胶衍生膜表现出最佳的染料去除性能，甲基蓝排斥率高达93.1％。经过另外三个过滤循环后，从R1-12-L3膜获得的渗透物渗透率可以保持在8.3 LMH / bar，甲基蓝排斥率为98.1％。这些实验结果表明，源自橡胶的中空纤维膜具有低成本，高性能和自清洁的特性，因此可以用于废水净化。