Table 2 The Langmuir and Freundlich adsorption isotherm constants for the biosorption of MB by chitosan and chitosan/EPS composite.

From: A novel composite of chitosan and Bacillus subtilis exopolysaccharide for the removal of methylene blue from aqueous solutions

Biosorbents

Langmuir

Freundlich

qmax

(mg g− 1)

b

(L mg− 1)

R2

Kf

n

R2

Chitosan

13.6986

0.0993

0.9489

9.278

0.5467

0.8004

Chitosan/EPS composite

14.2552

0.97431

0.962

1.1715

0.65167

0.8747