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Research Article Open Access
Iron nitrate supported hexagonal mesoporous (Fe-HMS) catalyst were successfully synthesized for Fenton-like oxidative degradation of Reactive Green-19 (RG19). Effects of pH, light intensity, catalyst amount, dye concentration, sensitizers, etc., were studied to optimize conditions for enhanced photo-catalytic activity. SEM, EDX, BET and UV–Vis (diffused reflectance mode) techniques were used to revealed the Fe-HMS physico-chemical properties. Kinetic study RG-19 treatment process at a reaction temperature 40°C, pH 3, 3 mgL-1 of Fe-HMS, 50 μL of H2O2, and 100 mgL-1 of dye were successfully carried out. The Fenton-like process correlation coefficient favors the first order kinetic model. COD and metal leaching analysis were done and results revealed that they were below DOE standard for effluent. Therefore, the treated water can safely discharge to the environment. The Fe-HMS catalyst reusability proved that it could be reused and has stability in reaction more than four cycles.
Fenton-like catalysts, Fe-hms, Reactive green-19, Degradation process, Physic-chemical characterizes, Kinetic and reusability studies, Glycosides, Isoprenoids, Natural Medicine