Table 2 Kinetic model values for the adsorption of Basic Violet 14 on to CS and TS
From: Removal of Basic Violet 14 from aqueous solution using sulphuric acid activated materials
Adsorbent | Concentration (mg/L) | qe(exp) (mg/g) | Pseudo first order values | Pseudo second order values | |||||
|---|---|---|---|---|---|---|---|---|---|
qe(Calc) (mg/g) | k1 (min−1) | R2 | qe(Calc) (mg g−1) | k2 (g mg−1 min−1) | h (mg g−1min−1) | R2 | |||
CS | 260 | 133.71 | 123.19 | 7.83 × 10−2 | 0.9959 | 142.85 | 7.96 × 10−4 | 16.24 | 0.9980 |
300 | 169.23 | 127.84 | 7.18 × 10−2 | 0.9950 | 169.49 | 8.27 × 10−4 | 23.75 | 0.9983 | |
340 | 191.29 | 125.14 | 6.52 × 10−2 | 0.9915 | 196.07 | 8.42 × 10−4 | 32.37 | 0.9973 | |
380 | 185.93 | 151.01 | 6.70 × 10−2 | 0.9953 | 199.60 | 5.74 × 10−4 | 22.87 | 0.9979 | |
TS | 260 | 133.71 | 74.03 | 10.13 × 10−2 | 0.9904 | 140.84 | 2.14 × 10−3 | 42.45 | 0.9985 |
300 | 145.91 | 92.44 | 9.70 × 10−2 | 0.9968 | 147.05 | 1.69 × 10−3 | 36.54 | 0.9985 | |
340 | 167.81 | 104.47 | 9.44 × 10−2 | 0.9952 | 172.41 | 1.38 × 10−3 | 41.02 | 0.9978 | |
380 | 149.19 | 73.65 | 9.05 × 10−2 | 0.9961 | 153.84 | 2.00 × 10−3 | 47.33 | 0.9980 | |