Ultrasonic Functionalized Egg Shell Powder for the Adsorption of Cationic Dye: Equilibrium and Kinetic Studies

Table 3

Kinetics parameters for MG dye adsorption onto UAESP.

S. no.	Models	Parameters	Initial MG dye concentration (mg/L)
			25	50	75	100	125	150
(exp)			32.86	62.59	82.38	123.97	145.64	161.25
1	Pseudofirst order	(mg/g)	32.91	63.43	83.97	125.5	149.1	166.9
		(min^-1)	0.0408	0.0396	0.0348	0.0316	0.0315	0.0312
			0.971	0.9696	0.9723	0.9772	0.9759	0.9829
2	Pseudosecond order	(mg/g)	39.18	76.04	103.1	157	187.7	212
		(g/mg min)	0.0013	0.0006	0.0004	0.0002	0.0002	0.0001
			0.9596	0.9636	0.9678	0.9729	0.9695	0.9763
3	Elovich		0.1666	0.0628	0.0276	0.0126	0.0096	0.0074
			2.722	6.385	9.74	16.18	19.85	23.13
			0.92	0.9324	0.9467	0.9568	0.9624	0.9617