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. 2024 Nov 4;25(21):11837. doi: 10.3390/ijms252111837

Table 5.

Results of pollutant removal using MgAl-LDH@SiO2 (Ci[AB-225] = Ci[AG-40] = Ci[AV-109] = 25 mg dm−3, Ci[Cr(VI)] = 10 mg dm−3, mads = 0.782 g, T = 25 °C, pH = 6).

Model and Parameters Q (cm3 min−1)
0.5 1.0 1.5
B–A KBA (dm3 mg−1 min−1) Cr(VI) 0.028 ± 6.99 × 10−4 0.053 ± 0.002 0.091 ± 0.003
qo (mg g−1) 90.02 ± 0.65 74.15 ± 0.93 60.83 ± 0.89
R 2 0.999 0.997 0.997
KBA (dm3 mg−1 min−1) AB-225 0.011 ± 4.45 × 10−4 0.021 ± 8.69 × 10−4 0.032 ± 0.00
qo (mg g−1) 294.7 ± 2.46 271.2 ± 2.84 226.6 ± 2.32
R 2 0.992 0.990 0.993
KBA (dm3 mg−1 min−1) AV-109 0.014 ± 3.54 × 10−4 0.027 ± 9.33 × 10−4 0.040 ± 0.001
qo (mg g−1) 233.9 ± 1.34 207.4 ± 1.85 178.8 ± 1.52
R 2 0.997 0.995 0.997
KBA (dm3 mg−1 min−1) 0.007 ± 2.07 × 10−4 0.014 ± 4.34 × 10−4 0.020 ± 3.22 × 10−4
qo (mg g−1) AG-40 555.5 ± 2.99 503.5 ± 3.23 438.0 ± 1.75
R 2 0.992 0.992 0.998
kYN (min−1) 0.564 ± 0.01 0.533 ± 0.02 0.603 ± 0.02
θ (min) Cr(VI) 6.952 ± 0.05 5.787 ± 0.07 4.744 ± 0.07
R 2 0.999 0.997 0.996
KYN (min−1) 0.566 ± 0.02 0.527 ± 0.02 0.529 ± 0.02
θ (min) AB-225 9.194 ± 0.08 8.377 ± 0.09 7.071 ± 0.07
R 2 0.992 0.990 0.993
Y–N KYN (min−1) 0.688 ± 0.02 0.674 ± 0.02 0.680 ± 0.02
θ (min) AV-109 7.299 ± 0.04 6.470 ± 0.06 5.525 ± 0.05
R 2 0.997 0.995 0.997
KYN (min−1) 0.347 ± 0.01 0.349 ± 0.01 0.332 ± 0.01
θ (min) AG-40 17.33 ± 0.09 15.55 ± 0.01 13.67 ± 0.05
R 2 0.992 0.992 0.998