Insights into Starch Coated Nanozero Valent Iron-Graphene Composite for Cr(VI) Removal from Aqueous Medium

Table 1

Comparison of different kinetic models and correlation coefficients () for Cr(VI) adsorption at pH 3.

Nonlinear model	Equation	Parameter	Value
Pseudo first order			1.259	0.889
			134.61
Pseudo second order			0.036	0.974
			135.96
Elovich		a	1.095	0.947
		b	0.272
Parabolic		a	124.445	0.787
			1.767
Power function		b	122.683	0.941
			0.027