From: Characterization of pulverized Marula seed husk and its potential for the sequestration of methylene blue from aqueous solution
Parameter
1.25Â g/L
2.5Â g/L
Pseudo first order
 R2
0.95
0.79
 qe
4.86
2.65
 K1
0.0193
0.0298
Pseudo second order
1.00
0.999
6.15
30.03
 K2
0.56
0.01
Elovich
0.91
0.87
 β
0.717
6.23
 α
10.13
65.57