Solar Heterogenous Photocatalytic Degradation of Methylthionine Chloride on a Flat Plate Reactor: Effect of pH and H2O2 Addition

Methylthionine chloride (MTC) is a compound with several applications both in the clinical and medical industries. Nevertheless, such compounds can become an environmental problem, as they are not properly treated by wastewater treatment plants. This objective of this work was to study MTC degradation flat plate reactor through solar photolysis heterogeneous photocatalysis processes TiO2 catalyst. In addition processes, three pH (3.5, 6.5, 9) effect H2O2 (no dose, 0.5, 1 mM/L) were tested. The results show that acidic most appropriate for degradation, which ranged between 56% 68.7% 76% 86.7% photocatalysis. resulted lower all cases, leading authors conclude presence peroxide actually hinders processes. Statistical analysis showed constant rate reactions calculated every process, under same conditions addition, significantly different from one another, factors considered experimental design (process, pH, H2O2) have statistically significant on degradation. collector area per order confirmed higher efficiency when compared