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Equilibrium isotherms and their fit to the Langmuir, Freundlich, and Temkin models for the adsorption of diclofenac sodium by organovermiculites (a) C14-Ver, (b) C16-Ver, and (c) C18-Ver at 25 °C (pH 6.0 or 8.0, 25 °C and Ci = 1–500 mg L–1).
