Figure 2
From: 3D Oxidized Graphene Frameworks for Efficient Nano Sieving

(a) Conductivity test of filtrate obtained by filtering 0.5 M NaCl solution. The inset shows the permeability of the filter, plotted on logarithmic scale. (b) Recycling performance of the filter shows that the filter’s salt rejection performance remains almost unaltered even after ten cycles of filtration.