Interfacial Synthesis of Free‐Standing Metal–Organic Framework Membranes

Abstract A method based on a liquid–liquid interfacial coordination mechanism has been developed for the synthesis of free‐standing metal–organic framework (MOF) membranes. MOF precursors, zinc nitrate [Zn(NO 3 ) 2 ] and terephthalic acid (TPA or H 2 BDC), as well as catalyst triethylamine (TEA), were dissolved in two immiscible solvents, dimethylformamide (DMF) and hexane. The reaction of Zn(NO 3 ) 2 and TPA (at a 2:1 molar ratio) in DMF was …