Figure 2. Water flux and salt rejection performance of the PIM-1 and C-PIM-1 membranes.
The effect of degree of carbonization on water flux and salt rejection of the membranes with a thickness of 30 μm upon (a) pure water and (b) MgSO4 solution (2,000 ppm) filtrations. (c) The effect of membrane thickness on water flux and salt rejection of the membranes with the degree of carbonization of 37.5% upon MgSO4 solution (2,000 ppm) filtration. The red solid and dotted lines indicate the water flux and salt rejection of a commercial polyamide NF membrane (NF2A), respectively.