Fig. 7
From: Ultra-thin enzymatic liquid membrane for CO2 separation and capture
CO2 separation applications of the enzymatic liquid membrane. a, b Comparison of the CO2 permeance of Bovine CA and Desulfovibrio vulgaris CA enzymatic liquid membranes as a function of the pH. c, d Comparison of the CO2 permeance of Bovine CA and Desulfovibrio vulgaris CA enzymatic liquid membranes as a function of the temperature. e FTIR spectrum of the enzymatic liquid membrane indicating an effective areal density (EAD) of 8.0 × 1011 CA cm–2 that is consistent with the loading of two CA enzymes per nanopore. f Selectivity vs. permeance plot (log 5 scale) of the enzymatic liquid membrane compared with various membranes. The green stars are performance range for our ultra-thin enzymatic liquid membrane; the red triangle is the performance for the Carbozyme CA membrane19; the blue dots, the ocean blue circle, the yellow prism, the light blue pentagon, the orange square, and the black hexagon are CO2 membrane performance data respectively from references7,49,50,51,52,53,10. The selectivity of the ZSM-5 membranes (black hexagon)10 increases from 17 to 210 as the temperature decreases from 37 to −43 °C. Error bars represent 95% confidence intervals for experiments performed with n = 3
