Table 1.
Adsorption kinetics and isotherms models.
Fig 1.
Adsorption kinetics of OTC on kaolinite: (a) pseudo-second-order model; (b) the linear plot of the pseudo-second-order model.
Table 2.
Pseudo-first-order and pseudo-second-order parameters of OTC adsorption on kaolinite.
Fig 2.
Adsorption isotherms for the OTC adsorption on kaolinite.
Table 3.
Langmuir, Freundlich and Tempkin models parameters for OTC adsorption on kaolinite.
Fig 3.
Fourier transform infrared spectroscopic analysis of kaolinite before and after adsorption.
Fig 4.
Effect of temperature on the sorption coefficient (Kd) for OTC sorption on kaolinite.
Table 4.
Thermodynamic parameters for OTC adsorption on kaolinite.
Fig 5.
Effect of pH on OTC adsorption capacity on kaolinite.
Fig 6.
Distribution of OTC species during different pH values.
Table 5.
Calculated adsorption coefficients for the OTC species.
Fig 7.
Values of the adsorption coefficient (Kd) for the sorption of OTC on kaolinite.