A Study on Astrazon Black AFDL Dye Adsorption onto Vietnamese Diatomite

Table 6

Kinetic parameters of pseudo-first- and second-order kinetic model.

Initial conc. (mg L^−1)	Pseudo-first-order kinetic model			Pseudo-second-order kinetic model
	(min^−1)		(mg g^−1)	(mg g^−1 min^−1)		(mg g^−1)	(mg g^−1)
150	1.620	0.252	66.99	0.041	0.999	69.10	71.2
200	1.040	0.487	87.69	0.020	0.980	91.10	93.0
300	1.370	0.133	109.63	0.016	0.994	114.86	133.2
400	1.130	0.389	124.07	0.014	0.811	130.78	136.6
600	0.790	0.990	124.08	0.009	0.804	132.72	140.0
800	0.943	0.995	133.69	0.012	0.875	140.32	141.1
900	1.100	0.996	124.60	0.015	0.871	130.39	135.2