Parameters of adsorption kinetics for As(III) adsorption on TiO2, ZIF-8, and TiO2@ZIF-8 in dark conditions
Material . | Pseudo-first-order . | Pseudo-second-order . | ||||
---|---|---|---|---|---|---|
qeq (mmol/g) . | k1 (h−1) . | R2 . | qeq (mmol/g) . | k2 (g/mmol·h) . | R2 . | |
TiO2 | 0.0848 | 0.823 | 0.979 | 0.110 | 6.995 | 0.966 |
ZIF-8 | 0.263 | 2.565 | 0.998 | 0.284 | 16.467 | 0.996 |
TiO2@ZIF-8 | 0.202 | 2.836 | 0.994 | 0.217 | 24.763 | 0.999 |
Material . | Pseudo-first-order . | Pseudo-second-order . | ||||
---|---|---|---|---|---|---|
qeq (mmol/g) . | k1 (h−1) . | R2 . | qeq (mmol/g) . | k2 (g/mmol·h) . | R2 . | |
TiO2 | 0.0848 | 0.823 | 0.979 | 0.110 | 6.995 | 0.966 |
ZIF-8 | 0.263 | 2.565 | 0.998 | 0.284 | 16.467 | 0.996 |
TiO2@ZIF-8 | 0.202 | 2.836 | 0.994 | 0.217 | 24.763 | 0.999 |