[Retracted] Polypyrrole/Magnetic/Tea Waste Composites for PO₄³⁻ Ions Removal: Adsorption-Desorption, Kinetics, and Thermodynamics Studies

Table 1

Kinetic parameters for the adsorption of PO₄³⁻ ions on the native and composite adsorbents.

Kinetic models	Parameters	Native TW	PPY/TW	MG/TW
Pseudo-first-order		0.5736	0.5988	0.6757
	(min^-1)	0.02	0.031	0.030
	(cal.) (mg/g)	1.8	2.70	3.33
	(Exp.) (mg/g)	4.3	5.2	6.4
Pseudo-second-order		0.9916	0.9212	0.9916
	(min^-1)	0.034	0.00043	0.02
	(cal.) (mg/g)	4.53	77.5	6.75
	(Exp.) (mg/g)	4.3	5.2	6.4
Intraparticle diffusion model		0.9553	0.9801	0.976
		0.144	0.175	0.22
		2.80	3.355	3.988