Figure 4.
Pseudo first-order (a) and pseudo second-order (b) sorption linear fitting of PU1 in gasoline/water system. Pseudo first order (c) and pseudo second-order (d) sorption linear fitting of PU2 in gasoline/water system. Pseudo first-order (e) and pseudo second-order (f) fitting of PU1 in diesel/water system. Pseudo first order (g) and pseudo second-order (h) fitting of PU2 in diesel/water system.