Models

Fitting quation

R²

Fitting constants

Proposed Level 1

y = −0.00179x + 2.655

0.9372

K₁ = 0.00179

q_e= 14.224

Proposed Level 2

y = 0.0081x + 0.17035

0.9999

K₂ = 0.00039

q_e = 0.7605

Elovich

y = 4.288x + 89.4368

0.8933

α = 4.4986

β = 0.2332