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Table 2 Kinetic parameters of the pseudo first- and second-order kinetics

From: Kinetic and thermodynamic studies for fluoride removal using a novel bio-adsorbent from possotia (Vitex negundo) leaf

Initial con

Pseudo 1st-order parameters

 

Pseudo 2nd-order parameters

 

(mg/L)

q e (mg/g)

q e (mg/g) from plot

k 1 (min−1)

q e (mg/g)

q e (mg/g)from plot

k 2 (L/mol/min)

3

0.714

0.042954

0.027636

0.714

0.716332

2.388256

6

1.343

0.033497

0.027636

1.343

1.345895

3.049995

9

1.576

0.038815

0.029939

1.576

1.587302

1.593975

12

2.07

0.096828

0.029939

2.07

2.079002

0.929161

15

2.516

0.030269

0.025333

2.516

2.518892

3.353383