In recent years, graphene has received much attention in many fields, to the extent that it has been mostly able to solve the tremendous human challenge of water scarcity. In this research, graphene quantum dots (GQDs) were used for the preparation of polyvinyl chloride (PVC) blended matrix nanofiltration membrane for removing Reactive Blue 19 dye wastewater. Improvement in anti-fouling performance was tested by filtration of bovine serum albumin (BSA) solution. The GQDs were synthesized and characterized using TEM, XRD, FTIR, UV-Vis spectrophotometer, and fluorescence emission. The surface morphology of prepared nanocomposite membranes was identified using AFM and SEM images. By embedding the optimum amount of the GQDs to the PVC matrix (1 wt%), the water flux reached 19.1 L/m² h, which is 56% higher than the unfilled membrane. In the case of anti-fouling properties, the flux recovery ratio was improved from 68.8 to 80.0%. All of the fabricated PVC membranes have BSA rejection of more than 98%, and Reactive Blue 19 dye rejection of more than 96%. It can be concluded that the organic anti-fouling characteristics were improved with considerable permeability enhancement without influencing membrane rejection performance.

近年来，石墨烯已在许多领域引起了广泛关注，其程度已足以解决人类对水资源短缺的巨大挑战。在这项研究中，石墨烯量子点（GQDs）用于制备聚氯乙烯（PVC）混合基质纳滤膜，以去除活性蓝19染料废水。通过过滤牛血清白蛋白（BSA）溶液测试了防污性能的提高。使用TEM，XRD，FTIR，UV-Vis分光光度计和荧光发射对GQD进行合成和表征。使用AFM和SEM图像鉴定了制备的纳米复合膜的表面形态。通过将最佳数量的GQD嵌入PVC基体（1 wt％），水通量达到19.1 L / m ^2。h，比未填充的膜高56％。在防污性能的情况下，焊剂回收率从68.8％提高到80.0％。所有制成的PVC膜的BSA排斥率均超过98％，活性蓝19染料的排斥率则超过96％。可以得出结论，在不影响膜截留性能的情况下，有机防污性能得到了改善，同时渗透性得到了明显提高。