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

Table 5

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

C0 (mg/L)	(mg/g)	Pseudo-first-order				Error function
		k1 (min^−1)	(mg/g)	R^2	χ^2		RMSE
50	49.761	0.004145	5.237	0.431	39.84		44.52
100	100.95	0.011740	19.74	0.723	65.33		81.21
200	202.38	0.004600	119.92	0.748	33.60		82.46
300	297.85	0.004600	224.03	0.637	18.30		73.83
400	376.19	0.003915	361.83	0.799	0.55		14.36
500	458.81	0.003685	445.04	0.830	0.41		13.77