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. 2024 Jul 18;25(14):7871. doi: 10.3390/ijms25147871

Table 4.

Results of isotherm models for DCH sorption on the precursor microparticles.

P
T (K) 298 303 308
Langmuir model
qm (mg/g) a 99.81 101.67 103.44
KL (L/g) b 20.828 26.691 34.575
R2 c 0.999 0.998 0.996
χ2 d 0.070 0.097 0.117
Freundlich model
KF (L/g) e 97.12 99.69 102.11
1/nF f 0.116 0.096 0.079
R2 c 0.930 0.926 0.966
χ2 d 3.991 3.196 1.083
Dubinin-Radushkevich model
qm (mg/g) a 98.14 100.44 102.55
E (kJ/mol) g 7.030 7.954 9.060
R2 c 0.998 0.996 0.998
χ2 d 0.116 0.166 0.054

a qm—the maximum sorption capacity; b KL—the Langmuir constant; c R2—correlation coefficient; d χ2—chi-square test; e KF—the Freundlich constant; f nF—empirical constant; g E—sorption energy.