Sulfhydryl Functionalized Magnetic Chitosan as an Efficient Adsorbent for High-Performance Removal of Cd(II) from Water: Adsorption Isotherms, Kinetic, and Reusability Studies

Table 4

Kinetic data for Cd(II) adsorption by Fe₃O₄@CS@DMSA nanocomposite (: 298 K; : 25 mg/L; adsorbent dose: 0.01 g; agitation speed: 100 rpm).

Model	Parameters	Value
	: 25 mg/L, : 58.75 mg/g
Pseudo-first-order	(mg/g)	61.45
	(1/min)	0.0103
		0.97515
Pseudo-second-order	(mg/g)	79.82
	(g/mg-min)	0.00011
		0.9567
Elovich	(mg/g min)	0.87664
	(mg/g)	0.04278
		0.93427