Polymeric membranes are widely applied in water and wastewater treatment. During membrane filtration, membrane hydrophilicity is essential for both membrane flux and fouling resistance, and sufficient mechanical strength is also critical for enduring various operational condition. In the last 10 years, mussel-inspired chemicals have become a promising strategy for membrane modification due to their universality and versatility. Simply immersing membranes into a basic dopamine solution can induce a hydrophilic PDA layer on the membrane surface. Both the mechanical properties and the hydrophilicity of polymeric membranes are altered via this adhesion procedure. This review aims to expand the general vision on controlling PDA based hydrophilic modification, including influential factors of dopamine self-polymerization and the deposition behavior on different types of membranes. In addition, advanced dopamine-based hydrophilic modification is also reviewed where PDA serves as a filler or an intermediate layer to optimize the membrane separation performance. Finally, some critical unsolved challenges are discussed, and possible directions of further research on mussel-inspired PDA modification of polymeric membranes are proposed.

聚合物膜广泛应用于水和废水处理。在膜过滤过程中，膜亲水性对于膜通量和耐污垢性都是必不可少的，并且足够的机械强度对于承受各种操作条件也至关重要。在过去的十年中，贻贝类化学品因其通用性和多功能性而成为一种有前途的膜改性策略。只需将膜浸入碱性多巴胺溶液中，即可在膜表面上诱导出亲水性PDA层。聚合物膜的机械性能和亲水性都可以通过这种粘合程序来改变。这篇评论旨在扩大基于PDA的亲水改性控制的一般视野，包括多巴胺自聚合的影响因素以及在不同类型膜上的沉积行为。此外，还对先进的基于多巴胺的亲水性改性方法进行了综述，其中PDA用作填料或中间层以优化膜分离性能。最后，讨论了一些关键的未解决的挑战，并提出了进一步研究贻贝启发的聚合物膜的PDA改性的可能方向。