Table 6: Curve fitting results of ATP adsorption for different adsorption isotherms.

Isotherms Linear forms Curves Parameters Values
Langmuir R2 0.99996
Kads (L mol-1) 2.05×106
Slope 1.06156
Freundlich R2 0.90623
Kads (L mol-1) 1.06
Slope (1/n) 0.01384
n 72.25
Temkin R2 0.90543
Kads (L mol-1) 83.33
Pente (1/f) 0.01258
A 79.49
Frumkin R2 0.86309
Kads (L mol-1) 3.9×1026
Slope (-2f) 52.60334
f -26.30
Flory-huggins R2 0.89258
Kads (L mol-1) 3.9×1010
Slope (a) 5.50857

where Kads is the equilibrium constant of the adsorption process, Cinh is the inhibitor concentration, f is the factor of energetic inhomogeneity and the parameter ̋ a ̏ is the water molecules number replaced by inhibitor molecules on metallic surface.