Table 3.

Constants of pseudo-first-order and pseudo-second-order adsorption kinetic models.

Adsorbent	Kinetic model	Initial MB concentration (mg·L−1)
		20	100	300
MnOX-CHBNC	q experimental	1.976	9.972	29.329
	Pseudo-first-order
	q e	1.048	6.309	21.092
	K 1	3.44 × 10−2	5.20 × 10−3	1.10 × 10−3
	R 2	0.886	0.785	0.831
	Pseudo-second-order
	q e	2.085	9.443	26.352
	K 2	5.261 × 10−2	2.311 × 10−3	1.51 × 10−2
	R 2	0.998	0.976	0.999
MnOX-KLBNC	q experimental	2.629	13.240	33.104
	Pseudo-first-order
	q e	1.546	3.428	25.280
	K 1	4.20 × 10−3	9.40 × 10−3	1.60 × 10−3
	R 2	0.908	0.867	0.767
	Pseudo-second-order
	q e	2.068	12.771	16.129
	K 2	3.458 × 10−2	1.379 × 10−2	2.298 × 10−3
	R 2	0.997	0.999	0.974