Abstract Two nanocomposite types of Cu(tpa) MOFs supported on graphene oxide (Cu(tpa)@GO) were prepared by varying the ratio of MOF to GO. These composites were used to produce a series of Cu(tpa)@GO polyethersulfone (PES) composite membranes through a phase inversion method. The nanocomposites and the membranes were all characterized using a variety of physicochemical techniques such as contact angle, SEM, TEM, etc. The composite membranes exhibited high hydrophilicity and increased pure water flux relative to pristine PES and GO/PES membranes. Furthermore, the Cu(tpa)@GO/PES composite membranes presented high antifouling properties with almost 98% of flux recovery ratio compared to 43% and 78% obtained for pristine PES and GO/PES membrane respectively. Finally, these Cu(tpa)@GO/PES membranes exhibited selective anionic dye rejection of > 80% and > 50% for Congo Red and Methyl Orange respectively as compared to that observed for the cationic dye Methylene Blue at

中文翻译：

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Cu(tpa)@GO/PES复合膜的防污性能和选择性染料排斥

摘要 通过改变 MOF 与 GO 的比例制备了两种纳米复合类型的 Cu(tpa) MOFs 负载在氧化石墨烯上 (Cu(tpa)@GO)。这些复合材料通过相转化法制备了一系列 Cu(tpa)@GO 聚醚砜 (PES) 复合膜。纳米复合材料和膜都使用各种物理化学技术（如接触角、SEM、TEM 等）进行表征。复合膜表现出高亲水性，并且相对于原始 PES 和 GO/PES 膜增加了纯水通量。此外，与原始 PES 和 GO/PES 膜分别获得的 43% 和 78% 的通量回收率相比，Cu(tpa)@GO/PES 复合膜具有高防污性能，通量回收率几乎为 98%。最后，这些 Cu(tpa)@GO/PES 膜表现出 >