Table 3 Isotherm parameters for DB103 dye adsorption onto the AC.

From: Modeling and optimization of direct dyes removal from aqueous solutions using activated carbon produced from sesame shell waste

Isotherm

Isotherm parameter

Value

Langmuir

qmax (mg/g)

12.65

b (L/mg)

0.083

R2

0.989

Freundlich

KF (mg/g)(L/mg)1/n

1.293

n

1.794

R2

0.994

Dubinin-Radushkevich

qmax (mg/g)

9.113

E (mol2/J2)

0.5

R2

0.712

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