Eco-Friendly Photocatalyst Derived from Egg Shell Waste for Dye Degradation

Table 2

Results of kinetic experiments conducted for industrial dye using calcined egg shell powder.

	First-order kinetics			Pseudo-second-order kinetics
	k1 (min^−1)	qe (mg·g^−1)	R^2	k2 (g·mg^−1·min^−1)	qe (mg·g^−1)	R^2
CESP	1.6241	1.1569	0.7813	0.2933	1.1777	0.9994

Initial MB concentration = 100 mg/l; amount of CESP = 1.5 g.