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. 2017 Oct 31;7:14448. doi: 10.1038/s41598-017-14327-7

Table 5.

Summarized kinetic constants for the adsorption of different dyes on the surface of unmodified and cationized films.

C0 (mg/L) Pseudo-first-order Pseudo-second-order Elovich Diffusion
K1 qe R2 SSE K2 qe R2 SSE α β R2 K1 R2
MB
10 0.0089 2.135 0.66 0.461 0.093 5.76 0.99 0.009 6.654 0.657 0.623 0.4059 0.511
20 0.01 1.891 0.55 0.87 0.003 8.888 0.99 0.002 28.58 0.754 0.529 0. 586 0.412
30 0.0098 1.829 0.48 1.1 0.153 10.66 0.99 0.002 303.6 1.119 0.475 0.6697 0.366
RB198
10 0.007 1.824 0.9 0.006 0.054 2.014 0.97 0.017 0.468 2.493 0.975 0.1988 0.952
20 0.0098 2.9 0.86 0.075 0.099 3.852 0.97 0.044 0.778 1.207 0.971 0. 4009 0.904
30 0.0119 4.301 0.92 0.146 0.021 5.875 0.97 0.05 1.656 0.883 0.944 0.564 0.93
DY50
10 0.0028 1.213 0.94 0.079 0.049 0.724 0.85 0.018 0.068 7.553 0.913 0.0657 0.98
20 0.0038 1.39 0.85 0.06 0.058 1.055 0.94 0.019 0.143 4.57 0.957 0.1042 0.95
30 0.0038 1.376 0.71 0.012 0.14 1.32 0.99 0.0005 0.453 3.731 0.937 0.12 0.83
NBB
0% 0.003 0.494 0.838 0.015 0.356 0.378 0.983 0.002 0.11 13.568 0.97 0.036 0.926
0.05% 0.009 2.452 0.801 0.416 0.078 6.305 0.999 0.011 5.2 0.8579 0.82 0.099 0.585
1% 0.005 0.82 0.472 0.212 0.342 2.74 0.999 0.001 9.09 2.504 0.52 0.179 0.416
2% 0.004 0.494 0.621 0.088 0.373 1.309 0.998 0.002 1.84 4.697 0.69 0.529 0.672