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Bulletin of the National Research Centre

Table 2 Parameters for the kinetic adsorption of PE and PQ onto ACBGNS

From: Experimental and computational studies on activated Bambara groundnut (Vigna subterranean) hulls for the adsorptive removal of herbicides from aqueous solution

Kinetic models

Numerical values

Pseudo-first order

qeExp (mg/g)

qeCal (mg/g)

K1 (min−s)

R2

PE

14.89

0.432

0.0023

0.098

PQ

13.01

1.236

0.021

0.781

Pseudo-second order

qeExp (mg/g)

qeCal (mg/g)

K2 (min−s)

R2

PE

14.89

14.93

0.897

1

PQ

13.01

13.16

0.058

0.999

Intra particle diffusion

 

K3

C

R2

PE

 

0.094

15.74

0.049

PQ

 

0.172

11.28

0.614

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