Fig. 2: Membrane synthesis and characterization. | Nature Communications

Fig. 2: Membrane synthesis and characterization.

From: Energy-autonomous KCl extraction from brine via biomimetic covalent-organic-framework membranes and redox-driven ion transport

Fig. 2

a Schematic of the synthetic pathway and chemical structures of COF-TFB, COF-TFB-OMe, and COF-TFB-OH, along with ESP maps projected onto their van der Waals surfaces. b Zeta potential of the membranes measured in 1 mM KCl at pH 6.5. c WAXS patterns, including a magnified region and a simulated PXRD pattern based on the I-43d space group. d N2 sorption isotherms collected at 77 K; inset displays pore size distribution derived using the NLDFT method. e Pore size distribution determined via PALS.

Back to article page