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. 2021 Jun 1;26(11):3330. doi: 10.3390/molecules26113330

Table 5.

The parameters corresponding to the Lagergren and Ho models used in the case of 1,2,4-triazole sorption onto PG and PGB1 copolymers.

C1,2,4-triazole
(g/mL)
PG PGB1
298 303 308 298 303 308
qe,exp (mg/g) 325 394 473 412 496 587
3.6 × 10−4 Lagergren model
qe,calc (mg/g) 346.29 415.91 491.95 428.82 511.76 600.94
k1 (×103 min−1) 2.19 3.01 3.31 3.83 3.92 4.14
χ 2 1.738 2.263 1.119 1.119 1.682 1.103
R 2 0.998 0.998 0.998 0.999 0.998 0.999
Ho model
qe,calc (mg/g) 449.72 482.38 564.84 579.40 616.92 696.22
k2 [×106 (g/mg⋅ min)] 1.26 1.62 2.43 2.89 3.51 3.92
χ 2 4.014 4.686 5.976 2.411 5.499 5.040
R 2 0.997 0.997 0.997 0.998 0.997 0.998
3.6 × 10−3 qe,exp (mg/g) 432 491 593 507 583 659
Lagergren model
qe,calc (mg/g) 473.63 523.96 622.21 531.87 606.53 679.53
k1 (×103 min−1) 3.10 3.52 4.01 4.13 4.27 4.87
χ 2 1.456 1.446 1.569 1.312 1.852 1.786
R 2 0.998 0.999 0.998 0.997 0.998 0.997
Ho model
qe,calc (mg/g) 546.70 621.17 709.71 649.28 694.28 766.03
k2 [×106 (g/mg⋅ min)] 2.19 2.46 3.11 3.07 3.72 4.01
χ 2 2.071 2.539 2.390 2.772 2.083 2.310
R 2 0.997 0.996 0.997 0.995 0.997 0.996
7 × 10−3 qe,exp (mg/g) 449 504 606 519 594 667
Lagergren model
qe,calc (mg/g) 463.71 527.91 622.32 533.86 621.43 681.07
k1 (×103 min−1) 3.42 3.96 4.43 4.60 4.90 5.10
χ 2 1.722 1.949 1.654 1.034 1.326 1.764
R 2 0.997 0.997 0.998 0.998 0.997 0.999
Ho model
qe,calc (mg/g) 567.15 613.04 713.83 621.28 734.63 796.60
k2 [×106 (g/mg min)] 3.09 3.87 4.11 3.35 4.19 5.17
χ 2 2.609 2.913 1.895 2.776 2.864 3.775
R 2 0.996 0.997 0.996 0.997 0.997 0.998
15 × 10−3 qe,exp (mg/g) 457 512 618 529 601 672
Lagergren model
qe,calc (mg/g) 483.63 532.96 644.21 544.25 627.05 694.28
k1 (×103 min−1) 3.67 4.67 4.81 4.92 5.14 5.48
χ 2 1.466 1.343 1.691 1.144 1.671 1.024
R 2 0.997 0.999 0.998 0.998 0.999 0.999
Ho model
qe,calc (mg/g) 568.17 624.11 754.83 635.77 729.27 783.34
k2 [×106 (g/mg min)] 3.85 4.38 5.83 4.23 4.97 5.73
χ 2 3.050 3.208 3.903 3.887 4.321 3.678
R 2 0.996 0.997 0.996 0.998 0.997 0.997