Dyes, salts, microorganisms, and other pollutants found in wastewater can be harmful to the environment and are difficult to treat. To address this problem, we designed and prepared a graphene oxide (GO) membrane that was modified with an azine-linked covalent-organic framework via dipping and polymerization. This membrane could efficiently remove dyes with molecular weight from 319.85 to 1355.37 (removal efficiency greater than 90%), inorganic salts (greater than 80%), and microorganisms (nearly 100%). The maximum flux of the composite membrane can reach 47 L m⁻² h⁻¹ bar⁻¹. The developed membrane was able to carry out its removal effect by utilizing a combination of sieving and electrostatic interactions, showing promising future application prospects. The removal mechanism of the developed membrane is also briefly discussed.

废水中发现的染料、盐分、微生物和其他污染物对环境有害且难以处理。为了解决这个问题，我们设计并制备了一种氧化石墨烯 (GO) 膜，该膜通过浸渍和聚合用吖嗪连接的共价有机框架进行了改性。该膜可以有效去除分子量从319.85到1355.37的染料（去除效率大于90%）、无机盐（大于80%）和微生物（接近100%）。复合膜的最大通量可达47 L m ^-2  h ^-1 bar ^-1. 所开发的膜能够利用筛分和静电相互作用的结合来发挥其去除作用，显示出良好的未来应用前景。还简要讨论了开发膜的去除机制。