Biosynthesis and Characterization of Iron Nanoparticles for Effective Adsorption of Cr(VI)

Table 6

Kinetic model parameters with regression coefficients and error functions for the pseudo-second-order kinetic model.

C0 (mg/L)	(mg/g)	Pseudo-second-order			Error function
		k2 (g/mg.min)	(mg/g)	R^2	χ^2	RMSE
50	49.761	0.009040	50.237	0.999	0.0	0.48
100	100.95	0.003780	101.19	0.999	0.0	0.24
200	202.38	0.000535	199.27	0.994	0.05	3.11
300	297.85	0.000879	302.62	0.996	0.08	4.76
400	376.19	0.001181	401.90	0.997	1.76	25.71
500	458.81	0.000629	496.94	0.991	3.17	38.14