Table 4 Various kinetics 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

Pseudo-first order

Pseudo-second order

Qe (mg g−1)

k1 (min−1)

R2

Qe (mg g−1)

k2 (g mg−1 min−1)

R2

BU_AC_H2O_900

137.03

0.151

0.99

142.86

0.003

0.99

BU_AC_k2CO3_700

109.48

0.111

0.99

116.28

0.002

0.99

BU_AC_KOH_700

102.12

0.183

0.99

104.17

0.005

0.99

BS_AC_H2O_900

122.64

0.160

0.98

125.00

0.006

0.99

BS_AC_k2CO3_700

83.29

0.171

0.99

82.64

0.013

0.99

BS_AC_KOH_700

89.08

0.370

0.93

89.24

0.020

0.99

SD_AC_H2O_900

158.96

0.191

0.99

163.93

0.004

0.99

SD_AC_k2CO3_700

123.55

0.191

0.99

131.58

0.003

0.99

SD_AC_KOH_700

92.13

0.194

0.99

99.00

0.005

0.99

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