Kinetics and Equilibrium Studies of the Adsorption of Copper(II) Ions from Industrial Wastewater Using Activated Carbons Derived from Sugarcane Bagasse

Table 5

Kinetic model constants and coefficient of correlation values of different kinetic models for Cu(II) ions.

Kinetic models	Parameters	Adsorbents
		BAC-P	BAC-Zn
Fractional power		0.0253	0.0218
		0.0126	0.0163
		0.9090	0.8963
Pseudo-first order		0.0132	0.0222
		0.0652	0.0728
		0.0658	0.1111
		0.9454	0.9329
Pseudo-second order		0.5390	3.9200
		0.6475	0.4009
		0.0652	0.0728
		0.1096	0.3198
		0.8451	0.1266
Intraparticle diffusion		0.0335	0.0398
		−0.0023	−0.0072
		0.9409	0.9194
Elovich		4.7393	3.5590
		0.0351	0.0344
		1.8567	1.5930
		0.9798	0.9682