## 5 Conclusions  
The conclusions are valid, but they could be expanded to include more practical implications and avenues for future research. This study demonstrates that photoelectrochemical treatment, with a current density of 20 A \(\times\) cm\({}^{-2}\) and UV light, significantly affects the degradation of the studied dye. The reduction in absorption of the dye's characteristic bands after treatment indicates the breaking of chromophore bonds and a decrease in dye concentration. Multivariate analysis revealed significant differences in dye degradation, cell potential, recovered mass, and pH based on varying current densities. The combination of UV light and current induced further changes in dye degradation, cell potential, and pH, highlighting the synergistic effect of UV light in the degradation process. \begin{table}
\begin{tabular}{c c c} \hline \hline
**Kinetics and Efficiency Parameters** & **Without UV Light** & **With UV Light** \\ \hline \(\mathrm{k_{el}/mL\times L^{-1}}\) & 22.39 \(\pm\) 0.49 & – \\ \hline \(\mathrm{k_{rel}/mL\times L^{-1}}\) & n/a & 27.2 \(\pm\) 3.3 \\ \hline \(\mathrm{k_{fel}/s^{-1}}\) & n/a & 25.78 \(\pm\) 3.7 \\ \hline \(\mathrm{K_{ox1}/mL\times L^{-1}}\) & 0.035 \(\pm\) 0.004 & \\ \hline \(\mathrm{K_{ox2}/mL\times L^{-1}}\) & 22.36 \(\pm\) 0.49 & \\ \hline \(\mathrm{K_{red2}/s^{-1}}\) & 23.5 \(\pm\) 6.2 & \\ \hline \(\mathrm{K_{deg}/s^{-1}}\) & 21.2 \(\pm\) 4.0 & \\ \hline \(\mathrm{E_{cell}/V}\) & 13.70 & 13.05 \\ \hline \(\mathrm{E_{cell}/V}\) & 13.70 & 13.05 \\ \hline \(\mathrm{Consumption/kW\times h\times kg^{-1}}\) & 6.20 & 3.71 \\ \hline \(\mathrm{\tau_{et}/g\times mL\times h^{-1}}\) & 31.6 & 52.73 \\ \hline \(\mathrm{j/A\times m^{-2}}\) & 20 & \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Efficiency parameters of the batch photoelectrochemical reactor during operation without and with ultraviolet light. Values are shown for cell potential, electrical consumption per unit of degraded mass, effective area, space–time efficiency, and current density. While these findings suggest that photoelectrochemical treatment with current and UV light can be a promising strategy for dye degradation in aqueous solutions, the study's limitations must be acknowledged. Specifically, factors such as the effect of temperature and UV intensity, which are known to influence degradation, were controlled but not further explored in terms of scaling up for industrial applications. The study's scope did not address large-scale implementation, which would require additional research to understand technical challenges and optimize conditions for practical use. Future research should focus on refining these treatment parameters, investigating the degradation mechanisms in more detail, and exploring potential industrial applications of photoelectrochemical technologies for wastewater treatment and the removal of colored contaminants. Conceptualization, D.I.C.-L., A.O.-M., V.E.R.-C., M.R.-P., F.M.G.-M. and J.A.C.-M.; Methodology, D.I.C.-L., A.O.-M., V.E.R.-C., M.R.-P., M.V., N.T., J.A.C.-M. and F.M.G.-M.; software, D.I.C.-L., A.O.-M., V.E.R.-C., M.R.-P. and J.A.C.-M.; validation, D.I.C.-L., A.O.-M., V.E.R.-C., M.R.-P., J.A.C.-M. and F.M.G.-M.; formal analysis, D.I.C.-L., A.O.-M., V.E.R.-C., M.R.-P., J.A.C.-M., S.L.-G. and F.M.G.-M.; resources, J.A.C.-M. and F.M.G.-M.; data curation, D.I.C.-L., A.O.-M., V.E.R.-C., M.R.-P. and J.A.C.-M.; writing-original draft preparation, D.I.C.-L., A.O.-M., V.E.R.-C., M.R.-P., J.A.C.-M., S.L.-G., M.V., N.T. and F.M.G.-M.; writing review and editing, D.I.C.-L., A.O.-M., V.E.R.-C., M.R.-P., J.A.C.-M., S.L.-G., M.V., N.T. and F.M.G.-M.; visualization, D.I.C.-L., A.O.-M., V.E.R.-C., M.R.-P., J.A.C.-M., S.L.-G., M.V., N.T. and F.M.G.-M.; supervision, J.A.C.-M. and F.M.G.-M.; project administration, J.A.C.-M. and F.M.G.-M.; funding acquisition, F.M.G.-M. and M.V. All authors have read and agreed to the published version of the manuscript. This research received no external funding. Not applicable.