This study addresses the urgent issue of water pollution caused by iron (Fe) and manganese (Mn) ions. It introduces an innovative approach using graphene oxide (GO) and GO-decorated polyethersulphone (PES) membranes to efficiently remove these ions from contaminated water. The process involves integrating GO into PES membranes to enhance their adsorption capacity. Characterization techniques, including scanning electron microscopy, Fourier-transform infrared, and contact angle measurements, were used to assess structural and surface properties. The modified membranes demonstrated significantly improved adsorption compared to pristine PES. Notably, they achieved over 94% removal of Mn2+ and 93.6% of Fe2+ in the first filtration cycle for water with an initial concentration of 100 ppm. Continuous filtration for up to five cycles maintained removal rates above 60%. This research advances water purification materials, offering a promising solution for heavy metal ion removal. GO-decorated PES membranes may find application in large-scale water treatment, addressing environmental and public health concerns.

中文翻译：

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使用氧化石墨烯装饰的聚醚砜膜增强去除污水中的铁 (Fe) 和锰 (Mn) 离子：合成和表征

这项研究解决了由铁 (Fe) 和锰 (Mn) 离子引起的水污染的紧迫问题。它引入了一种创新方法，使用氧化石墨烯 (GO) 和 GO 装饰的聚醚砜 (PES) 膜来有效去除污染水中的这些离子。该过程涉及将 GO 整合到 PES 膜中以增强其吸附能力。表征技术，包括扫描电子显微镜、傅里叶变换红外和接触角测量，用于评估结构和表面特性。与原始 PES 相比，改性膜的吸附性能显着提高。值得注意的是，他们实现了 94% 以上的锰去除率2+和 93.6% 的铁2+在第一个过滤周期中，初始浓度为 100 ppm 的水。连续过滤最多五个周期，去除率保持在 60% 以上。这项研究推进了水净化材料的发展，为去除重金属离子提供了一种有前景的解决方案。GO 装饰的 PES 膜可用于大规模水处理，解决环境和公共卫生问题。