The present work reports the effective method for removal of dyes using graphene oxide (GO) and polysulfone (PSf) composite membranes. The membranes were prepared by phase inversion method using PSf with different concentrations of GO ranging from 1% to 4% and polyethylene glycol (PEG 4000 Da) was used as a pore forming agent. The prepared membranes were successfully characterized for their physical and chemical properties, as well as performance ability in terms of dye removal. The presence of GO in the membranes was unambiguously confirmed by ATR–IR spectra and XRD analysis. While pure water flux and rejection studies were carried out using dead–end filtration unit. The rejection experiment was conducted with and without addition of PVA and it was found that, PVA enhanced the rejection up to 100%. Evidently, 2% GO incorporated membrane demonstrated better rejection compared with other membranes. The process is able to remove 100% Methyl Orange, Methylene Blue, Sulfone Black F, Rhodamine 6G and Malachite Green dyes. Effect of pressure, pH, and time duration on filtration is reported and more effect performance was observed. The probable mechanism for separation of organic dyes was predicted. Finally, industrial dye effluents were also subjected for rejection experiment and 58–68% of rejection was observed. The addition of PVA to dye solution was found as an effective interaction method for removal of dyes using membrane technology.

目前的工作报告了使用氧化石墨烯 (GO) 和聚砜 (PSf) 复合膜去除染料的有效方法。膜通过转相法制备，使用 PSf 和不同浓度的 GO，范围从 1% 到 4%，聚乙二醇（PEG 4000 Da）用作成孔剂。制备的膜成功地表征了它们的物理和化学性质，以及在染料去除方面的性能。ATR-IR 光谱和 XRD 分析明确证实了膜中 GO 的存在。而纯水通量和拒绝研究是使用死端过滤装置进行的。在添加和不添加 PVA 的情况下进行排斥实验，发现 PVA 将排斥提高到 100%。显然，与其他膜相比，含有 2% GO 的膜表现出更好的截留率。该工艺能够去除 100% 的甲基橙、亚甲蓝、砜黑 F、罗丹明 6G 和孔雀石绿染料。报告了压力、pH 值和持续时间对过滤的影响，并观察到了更多的影响性能。预测了分离有机染料的可能机制。最后，工业染料流出物也进行了排斥实验，观察到了 58-68% 的排斥。发现将 PVA 添加到染料溶液中是使用膜技术去除染料的有效相互作用方法。并报告了过滤的持续时间，并观察到了更多的效果。预测了分离有机染料的可能机制。最后，工业染料流出物也进行了排斥实验，观察到了 58-68% 的排斥。发现将 PVA 添加到染料溶液中是使用膜技术去除染料的有效相互作用方法。并报告了过滤的持续时间，并观察到了更多的效果。预测了分离有机染料的可能机制。最后，工业染料流出物也进行了排斥实验，观察到了 58-68% 的排斥。发现将 PVA 添加到染料溶液中是使用膜技术去除染料的有效相互作用方法。