 Abstract covalent modification is commonly used to tune the channel size and functionality of 2D membranes. However, this method can disrupt the structure of the membrane which limits its application. We have developed a novel approach using non-covalent modification with solvents to decorate the membrane's porous channels. This method has been shown to be more efficient at tuning the properties of the membrane while preserving its structural integrity. This article was authored by Yuan Kang, Ting Hu, Yi Qi Wang, and others.