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

Table 5.

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

		PB₁			PB₂			PB₃
T (K)	298	303	308	298	303	308	298	303	308
Langmuir model
q_m (mg/g) ^a	142.81	153.27	160.48	139.50	150.96	154.29	138.14	143.58	148.17
K_L (L/g) ^b	45.410	51.616	60.121	28.999	34.989	43.831	28.806	32.678	37.527
R^{2 c}	0.997	0.996	0.996	0.995	0.996	0.997	0.995	0.995	0.997
χ^{2 d}	0.167	0.246	0.243	0.475	0.430	0.224	0.468	0.464	0.288
Freundlich model
K_F (L/g) ^e	142.34	153.21	160.77	138.07	150.26	150.04	136.72	142.57	147.54
1/n_F ^f	0.071	0.067	0.061	0.101	0.091	0.077	0.101	0.094	0.085
R^{2 c}	0.955	0.953	0.953	0.948	0.959	0.947	0.963	0.962	0.957
χ^{2 d}	2.857	3.239	3.210	5.404	4.398	4.703	3.792	3.779	4.054
Dubinin-Radushkevich model
q_m (mg/g) ^a	142.15	152.77	160.15	138.16	149.94	153.62	136.79	142.45	147.26
E (kJ/mol) ^g	9.739	10.417	11.273	8.021	8.804	9.848	8.003	8.573	9.232
R^{2 c}	0.999	0.998	0.999	0.997	0.998	0.999	0.997	0.998	0.999
χ^{2 d}	0.019	0.090	0.052	0.279	0.165	0.046	0.272	0.231	0.052

^a q_m—the maximum sorption capacity; ^b K_L—the Langmuir constant; ^c R²—correlation coefficient; ^d χ²—chi-square test; ^e K_F—the Freundlich constant; ^f n_F—empirical constant; ^g E—sorption energy.