Table 4.

The correlation coefficients of pseudo-first-order and pseudo-second-order kinetic models for GO/CFGOs adsorption on cement.

	Pseudo–First–Order					Pseudo–Second–Order
C0 (mg/L)	250	300	350	400	450	250	300	350	400	450
GO	0.926	0.883	0.914	0.963	0.976	0.998	0.978	0.980	0.979	0.978
CFGO-1	0.893	0.888	0.745	0.885	0.881	0.996	0.977	0.978	0.955	0.997
CFGO-2	0.741	0.777	0.832	0.846	0.821	0.988	0.988	0.965	0.984	0.979
CFGO-3	0.795	0.875	0.904	0.935	0.950	0.997	0.979	0.982	0.961	0.975