According to the ion flux data in Fig. (b), we find that by increasing the B n -block ratio, the flux of NO - 3 and Cl -ions increases from 0 to roughly 2.2 ns -1 , whereas the flux of Na + ions decreases. In the 0 : 20 DCPAM system, the flux of Na + ions reaches a minimum value of approximately 2.2, which is one-third of the flux observed in the 16 : 4 system. Notably, in the 12 : 8 case, where the water flux is maximum, none of the NO - 3 ions pass through the membrane, and the Cl -flux is relatively small.