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. 2021 Jun 12;9(6):139. doi: 10.3390/toxics9060139

Figure 3.

Figure 3

The adsorption kinetic model: (a) pseudo−first−order kinetic model of CBZ adsorbed by MCNTs (with only MCNTs); (b) pseudo−second−order kinetic model of CBZ adsorbed by MCNTs (with only MCNTs); (c) pseudo−first−order kinetic model of CBZ adsorbed by MCNTs−PE (with PE added into the solution containing MCNTs); (d) pseudo−second−order kinetic model of CBZ adsorbed by MCNTs−PE (with PE added into the solution containing MCNTs). (Conditions: CBZ solution of 25 mL, MCNTs dose of 0.8 g/L, PE dose of 20 g/L, and a contact temperature of 298 K).