Table PR-619 .
The first order rate constant kapp for IF decomposition in different operating parameters.Current density (mA cm−2)pHIF concentrationmg L−1kapp (s−1)R24.86.549.4 (0.19 mM)1.3 × 10−40.9996.41.4 × 10−40.9989.61.7 × 10−40.99916.02.5 × 10−40.997552.5 × 10−40.999203.8 × 10−40.997510.2 × 10−40.9994.0502.5 × 10−40.9988.02.5 × 10−40.9999.52.5 × 10−40.991Full-size tableTable optionsView in workspaceDownload as CSV
The aforementioned radical is more efficiently produced at elevated current density, which enhances the drug removal. However, following analysis showed in Fig. 1 i.e. the reduction in IF concentration resulting from the charge passed (Q), one can conclude that the removal efficiency of IF decreases with increasing current density. At Q = 2.4 Ah L−1 the observed percent decrease in drug concentration was 86%, 77%, 70%, and 51% for the values of current density of 4.8, 6.4; 9.6 and 16 mA cm−2, respectively. This fact can be connected to the more advanced oxidation of intermediate reaction products oxidation and/or wasting the energy in side reactions.