Study on Modification of NaX Zeolites: The Cobalt (II)-Exchange Kinetics and Surface Property Changes under Thermal Treatment

Table 1

Freundlich, Langmuir, and pseudo-second-order model constants.

Isotherm model	Constants
Freundlich ()
Langmuir ()
Pseudo-second-order ()	(g mg^−1 min^−1)	(mg g^−1)