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. 2024 Jan 29;18(1):23. doi: 10.1186/s13065-024-01128-z

Table 2.

Analyzed isotherm parameters for the adsorption of Cd2+, Pd2+ and Cr3+ on to Co-DPA

Isotherm model Adsorbate
Cd Pb Cr
Langmuir
 qm (mg/g) 0.1604 0..557 0.453
 kL(L/mg) 0.4125 0.032 0.078
 RL 0.1081 0.6098 0.379
 R2 0.8757 0.95797 0.99269
Freundlich
 N 1.795 1.227 1.416
 KF(L/g) 0.04313 0.02023 0.039
 R2 0.96056 0.99799 0.99885