Figure 4
From: Halloysite Nanotubes Capturing Isotope Selective Atmospheric CO2
CO2 uptake from the ambient air by HNTs-NH2 as a function of time at 298 K. Inset shows CO2 uptake at an interval of 0.5 h up to 2 h. The plot represents a rapid adsorption phase followed by a slow approach to equilibrium.
