Figure 4
From: Insights into transport velocity of colloid-associated plutonium relative to tritium in porous media
The van der Waals attraction (ΦvdW) and electric double layer repulsion (Φedl) between the pore wall and the colloid surfaces, as affected by Na+ concentrations, responded to the variation in interaction distances.
The possible effects of Na+ on the colloid size and hence on the ΦvdW were not taken into account in the calculations (see the Supplementary Information).
