Sequential effect of microwave-photocatalysis on degradation of Bismarck Brown -Y dye

Advanced oxidation technologies based on microwave and photocatalysis have a higher potential for the treatment of environmental persistence and reclariant compounds. The present work investigates the treatment of Bismarck Brown dye using effects of photocatalysis (UV) and microwave (MW) and their sequential combination. It has been observed that the sequential combination of MW followed by UV (MW/UV) has shown the higher performance as compared to the effects of MW and UV alone. The maximum degradation for MW/UV observed is (44.1±0.5 %). It was much higher than UV (9.2±0.08 %), and MW (30.8±0.6 %). The process efficiency was further increased in the presence of the catalyst such as hydrogen peroxide, zinc oxide, and titanium dioxide. The highest degradation was observed in the presence of titanium oxide (82.9±0.4 %) as a catalyst loading of 0.1 g/L in 100 min. Total organic carbon (TOC) measured for quantification of mineralization of BB-Y. The maximum removal of TOC was 38.2±0.32 % in a sequential combination of MW-UV (presence TiO2).