Table 3 Fitting of kinetic models.

From: A combined experimental and modeling approach to elucidate the adsorption mechanism for sustainable water treatment via In2S3-anchored chitosan

Kinetic model

Linear equation

Correlation coefficient (R2)

PFO

\(\ln (q_{e} - q_{t} ) = \ln q_{e} - k_{1} t\)

0.9809

PSO

\(\frac{t}{{q_{t} }} = \frac{1}{{k_{2} q_{e}^{2} }} + \frac{1}{{q_{e} }}t\)

0.999

Elovich

\(q_{t} = \frac{1}{\alpha }\ln (\alpha \beta ) + \frac{1}{\alpha }\ln t\)

0.9651