Table 5 Langmuir and Freundlich parameters for the adsorption of phenol over as-prepared porous carbon materials under the optimized conditions of phenol dose of 100 mg L−1, temperature of 25 °C, and pH of 4.

From: High adsorption capacity of phenol and methylene blue using activated carbon derived from lignocellulosic agriculture wastes

Sample

Langmuir model

Freundlich model

Qmax

KL

R2

KF

1/n

R2

BU_AC_H2O_900

248.14

0.029

0.99

0.405

27.68

0.98

BU_AC_k2CO3_700

185.19

0.028

0.98

0.368

23.58

0.99

BU_AC_KOH_700

206.61

0.024

0.96

0.445

18.25

0.91

BS_AC_H2O_900

180.50

0.101

0.99

0.198

65.07

0.94

BS_AC_k2CO3_700

184.84

0.034

0.98

0.257

42.09

0.98

BS_AC_KOH_700

149.48

0.001

0.95

0.514

6.32

0.98

SD_AC_H2O_900

290.69

0.029

0.99

0.351

42.54

0.99

SD_AC_k2CO3_700

215.52

0.019

0.93

0.406

20.37

0.99

SD_AC_KOH_700

146.20

0.036

0.96

0.226

38.17

0.83

Back to article page