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. 2018 Aug 14;8(50):28775–28786. doi: 10.1039/c8ra04261f

Parameters obtained from the non-linear equations for the NIPC and MIPC polymers.

Polymer NIPC MIPC
Model Parameters Temperature (K)
288.15 298.15 308.15 318.15 288.15 298.15 308.15 318.15
q exp (mg g−1) 7.86 11.88 11.46 13.69 16.99 22.43 24.10 21.73
Freundlich K f (mg g−1) (L g−1)1/n 1.01 0.70 1.11 1.48 1.44 1.08 1.91 2.00
n (L mg−1) 1.98 1.37 1.69 1.70 1.50 1.15 1.32 1.45
X 2 0.42 1.02 1.59 2.30 1.91 2.03 7.34 4.45
Adj. R2 0.91 0.92 0.86 0.87 0.93 0.95 0.87 0.90
R 2 0.95 0.96 0.93 0.94 0.96 0.98 0.94 0.95
RMSE 0.64 1.01 1.26 1.51 1.38 1.42 2.70 2.11
Langmuir Q max (mg g−1) 10.90 27.51 18.34 22.62 32.48 44.79 29.78 44.25
b (L mg−1) 0.01 0.02 0.03 0.04 0.01 0.01 0.02 0.02
X 2 0.15 0.61 0.92 1.23 0.93 1.04 5.35 2.62
Adj. R2 0.96 0.95 0.92 0.93 0.96 0.96 0.90 0.94
R 2 0.98 0.98 0.96 0.96 0.98 0.98 0.95 0.97
RMSE 0.39 0.78 0.96 1.11 0.96 1.20 2.31 1.61
Sips Q max (mg g−1) 8.16 13.53 11.0 14.00 19.34 28.46 24.77 23.12
b (L mg−1) 0.06 0.04 0.07 0.07 0.06 0.05 0.09 0.08
n 0.57 0.46 0.36 0.41 0.56 0.53 0.33 0.43
X 2 0.05 0.05 0.10 0.16 0.18 0.20 0.13 0.18
Adj. R2 0.98 0.99 0.99 0.99 0.99 0.99 0.99 0.99
R 2 0.99 0.99 0.99 0.99 0.99 0.99 0.99 0.99
RMSE 0.23 0.23 0.32 0.40 0.43 0.45 0.37 0.43
Temkin b T (kJ mol−1) 0.98 0.53 0.61 0.50 0.35 0.25 0.23 0.29
A T (L mg−1) 0.39 0.23 0.27 0.30 0.29 0.25 0.30 0.33
X 2 0.15 0.92 0.66 0.78 0.28 1.60 3.57 1.62
Adj. R2 0.96 0.93 0.94 0.95 0.98 0.96 0.93 0.96
R 2 0.97 0.97 0.97 0.98 0.99 0.98 0.97 0.98
RMSE 0.38 0.96 0.81 0.83 0.53 1.26 1.89 1.27