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. 2018 Aug 30;3(8):10154–10162. doi: 10.1021/acsomega.8b01024

Table 2. Equilibrium Constants of Langmuir and Freundlich Isotherms for Cu(II) Adsorption.

  Langmuir model
 Freundlich model
membrane sample qm (mg/g) b (L/mg) R2 KF (mg/g) n R2
M 3 34.01 0.068 0.972 6.68 0.426 0.994
M 4 39.37 0.168 0.961 16.88 0.183 0.991
M 5 44.84 0.401 0.974 26.99 0.1149 0.996