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. 2020 Mar 11;5(11):5748–5755. doi: 10.1021/acsomega.9b03787

Table 2. Best-Fit Parameters of the Kinetic and Isotherm Models for RR120 Adsorption Onto 10%-CuO/BC.

model parameter 1 parameter 2 R2
pseudo-first-order k1 = 6.799 h–1 qe = 53.3 mg g–1 0.767
pseudo-second-order k2 = 0.202 g mg–1 h–1 qe = 55.9 mg g–1 0.952
Elovich α = 28510.712 mg g–1 h–1 β = 0.182 g mg–1 0.947
Langmuir KL = 0.001 L mg–1 qm = 1399 mg g–1 0.986
Freundlich Kf = 4.01 mg(1–n) Ln g–1 nf = 0.765 0.992