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Table 1

Parameters of adsorption kinetics for As(III) adsorption on TiO2, ZIF-8, and TiO2@ZIF-8 in dark conditions

MaterialPseudo-first-order
Pseudo-second-order
qeq (mmol/g)k1 (h−1)R2qeq (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 
MaterialPseudo-first-order
Pseudo-second-order
qeq (mmol/g)k1 (h−1)R2qeq (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 
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