Figure 4. Closer view of uptake
curves of 113, 266, 1130 and 10400 ppbv CH3I adsorptions
on Ag0-Aerogel for up to 288 hours.
Model Fitting Result
The 1st order SCM was used to fit the kinetic data to
determine Dp and ks in Eq.
3 and 4. To average the weights of different sections in the adsorption
curves and increase the accuracy of data fitting, t ’s were
rescaled by log10 before applying the least square
regressions. More specifically, was used instead of , which f is
Eq. 1-4, subscript i is the number of experimental data andexp is the indication of experimental data.
The model-fitting results and parameters are shown in Table 1.kf , calculated theoretically to be 5.99 cm/s by
applying Eq. 6-9, kept constant at 4 different concentrations;Dp and ks were determined
in model fitting and AARD is calculated using , wheremodel indicates model fitting result and N is the number
of data points.