Table 4 Adsorption kinetic parameters for gasoline adsorption onto UIO NPs, UIO/ACPMG10% nanohybrid, UIO/ACPMG20% nanohybrid, and UIO/ACPMG30% nanohybrid.
Kinetics Model | Adsorbent | Parameters | |||
|---|---|---|---|---|---|
qe (mg/g) | K1(min−1) | R2 | |||
PFO | UIO | 6.4 | 0.4 | 0.996 | |
UIO/ACPMG10% | 6.34 | 0.27 | 0.96 | ||
UIO/ACPMG20% | 6.08 | 0.11 | 0.99 | ||
UIO/ACPMG30% | 6.16 | 0.22 | 0.98 | ||
qe (mg/g) | K2 | R2 | |||
|---|---|---|---|---|---|
PSO | UIO | 312.5 | 0.002 | 1 | |
UIO/ACPMG10% | 111.63 | 0.03 | 0.988 | ||
UIO/ACPMG20% | 666.7 | 9.3×10-5 | 1 | ||
UIO/ACPMG30% | 400 | 0.0005 | 1 | ||
Parameters | |||||
|---|---|---|---|---|---|
R2 | Kdif (L/min) | C | |||
Intraparticle diffusion | UIO | Step1 | 0.98 | 33 | 41 |
Step2 | 0.95 | 8.23 | 194 | ||
Step3 | 0.97 | 29 | 287 | ||
Step1 | 0.99 | 21 | 51 | ||
UIO/ACPMG10% | Step2 | 0.99 | 11 | 148 | |
Step3 | 0.99 | 12 | 306 | ||
Step1 | 0.99 | 25 | 15 | ||
UIO/ACPMG20% | Step2 | 0.99 | 12 | 142 | |
Step3 | 0.75 | 2.93 | 3.19 | ||
Step1 | 0.97 | 25 | 31 | ||
UIO/ACPMG30% | Step2 | 0.98 | 5.83 | 216 | |
Step3 | 1 | 0.83 | 322 | ||
