Removal of Methyl Violet 2B from Aqueous Solution Using Casuarina equisetifolia Needle

Table 4

Parameters value for Lagergren 1st order, pseudo 2nd order, and Weber-Morris models.

Kinetic model	Parameter	Value	𝑞𝑒 exp (mg/g)
1st order	𝑞𝑒 cal (mg/g)	36.11	153.60
	𝐾1	−0.02
	𝑅^2	0.92
	RMSE	496.57
	𝜒^2	16467.00
Pseudo 2nd order	𝑞𝑒 cal (mg/g)	154.13	153.60
	𝐾2	0.002
	𝑅^2	0.99
	RMSE	164.82
	𝜒^2	773.30
Weber-Morris model	𝐾3	3.90
	𝐶	113.33
	𝑅^2	0.93
	RMSE	671.73
	𝜒^2	32730.42