Table 7.
FFD solution for optimization setting.
| Lower limit | Upper limit | Goal setting | Solution | |
|---|---|---|---|---|
| X1: Pebax concentration (wt %) | 1 | 3 | In range | 3 |
| X2: GO dispersed in Pebax (wt %) | 0 | 0.5 | In range | 0.4 |
| X3: GO dispersed in PSF (wt %) | 0 | 0.4 | In range | 0.4 |
| X4: Pebax–GO coating layer | 1 | 3 | In range | 1 |
| Y: Permeate flux kg/m2h | 0.738569 | 1.03689 | Maximize | 1.03689 Desirability (1) |