Table 1 Isotherm models parameters for CO2 and N2 adsorption at 25 °C.

From: Enhanced CO2 capture potential of UiO-66-NH2 synthesized by sonochemical method: experimental findings and performance evaluation

Isotherm model

Parameters

CO2 adsorption

N2 adsorption

Langmuir

qm

7.222

1.702

KL

0.793

0.200

R2

0.999

0.999

Freundlich

KF

3.262

0.286

n

1.413

1.115

R2

0.998

0.996

Dubinin–Radushkevich

qm

3.778

0.363

β

0.074

0.104

E

2.595

2.190

R2

0.989

0.988

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