Figure 1.

The kinetic steps and rate constant values determined by the zero order kinetic model for ampicillin (A) and tetracycline (B); the effectiveness of the sorption process for ampicillin (C) and tetracycline (D); experimental data and the matching of pseudo-first and -second order kinetic models of the ampicillin (E) and tetracycline (F) sorption by zinc oxide nanoparticles; the Weber–Morris intra-particle diffusion model of ampicillin (G) and tetracycline (H) sorption by zinc oxide nanoparticles.