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. 2019 Apr 15;9(21):11696–11706. doi: 10.1039/c9ra01386e

Adsorption kinetic parameters of naphthalene onto HC and HMAC at 303 K.

Models HC HMAC
C 0 (mg L−1) 10 20 30 40 50 10 20 30 40 50
q exp (mg g−1) 11.4 29.1 52.9 65.3 81.9 62.3 120.9 158.9 193.8 223.1
PFO q e,cal (mg g−1) 7.9 24.2 23.3 32.6 38.1 50.1 95.5 110.3 115.2 133.4
K 1 (min−1) 0.1559 0.2695 0.2510 0.2347 0.2706 0.1884 0.1198 0.2524 0.0958 0.1571
R 2 0.95 0.91 0.87 0.97 0.91 0.97 0.92 0.90 0.99 0.98
RMSE 9.5 12.3 17.1 18.9 15.4 14.5 13.8 12.0 10.0 10.8
PSO q e,cal (mg g−1) 12.0 31.1 53.8 66.7 83.3 64.7 129.6 161.3 204.1 225.6
K 2 0.0222 0.0075 0.0163 0.0100 0.0104 0.0032 0.0012 0.0074 0.0012 0.0014
R 2 0.99 1.00 0.99 1.00 1.00 1.00 0.99 1.00 0.99 1.00
q e,cal (mg g−1) 11.7 32.5 57.0 68.5 88.1 65.9 122.2 167.0 185.5 221.4
RMSE 3.1 3.3 3.9 5.2 4.5 3.5 3.2 6.7 5.5 6.8
Elovich (1/β)ln(αβ) (mg g−1) 3.85 6.74 29.88 35.56 45.80 14.70 23.14 106.16 79.04 100.14
1/β 1.8 5.9 6.2 7.5 9.7 11.7 22.6 13.9 24.3 27.7
R 2 0.94 0.94 0.94 0.96 0.95 0.97 0.97 0.96 0.85 0.88
RMSE 10.9 11.3 14.6 11.0 16.7 15.5 13.1 16.2 16.0 16.1