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. 2021 Jan 28;11:2612. doi: 10.1038/s41598-021-81928-8

Table 2.

Parameters in adsorption kinetic equation of OTC onto Fe-MCM-41-A.

Kinetic model Equation Parameters Value
Pseudo-first-order log(qe − qt) = logqe − k1/2.303t k1 (min−1) 0.1011
qe (mg g−1) 30.49
R2 0.9792
Pseudo-second-order (t/qt) = 1/(k2qe) + 1/qe(t) k2 (g mg−1 min−1) 1.6531
qe (mg g−1) 197.94
R2 0.9998