Synthesis and Characterization of Ti-Fe Oxide Nanomaterials for Lead Removal

Table 2

Kinetic constants for sorption of lead ion on binary oxide.

Langmuir

Freundlich

Fowler-Guggenheim

Dubinin-Radushkevich

Temkin

Flory-Huggins

(kJ/mol)

(kJ/mol)

(J/mol)

(kJ/mol)

16.67

1.3

0.02

10.21

6.71

4.2 s10^−9

−25.7

3.45

−0.042

1293

202.5

−0.363

−12.137