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Beni-Suef University Journal of Basic and Applied Sciences

Table 6 Temkin model adsorption isotherm parameters for Cu2+ [104]

From: Fly ash-based geopolymers: an emerging sustainable solution for heavy metal remediation from aqueous medium

Samples

Alkali activation

BT (J/mol)

AT (L/g)

Temkin (R2)

FA

–

1.49

0.35

0.920

Na-GP

NaOH

4.71

18.66

0.921

K-GP

KOH

1.75

10.29

0.892

NaSil-GP

NaOH + Na2SiO3

1.75

10.29

0.892

KSil-GP

KOH + Na2SiO3

5.1

12.57

0.975

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