Regulating interface nucleus growth of CuTCPP membranes via polymer collaboration method

Abstract Supported metal–organic framework (MOF) membranes are promising candidates for energy-efficient natural gas purification, but the preparation of ultrathin MOF membranes supported by polymer substrates remains challenging. Herein, we proposed a polymer collaboration method for preparing ultrathin two-dimensional MOF membranes on polymer support layers. Cu(II) meso-tetra (4-carboxyphenyl) porphyrin (CuTCPP) membranes having thicknesses as low as