Ultrasound Assisted Sonochemical Decomposition of Methyl Orange in the Presence of H2O2 and CCl4

Abstract

Methyl orange (MO) is an orange azoic dye; which has transition range from 3.1 to 4.4. Sonochemical decomposition of methyl orange in the presence of H2O2 and CCl4 has given effective result to reclaim water from the effluents released by the industries. The aim of this research was to investigate the effective condition for the decomposition of MO in the presence or absence of additives. For this, 50 mg/L solution of MO was sonicated in the presence and absence of different additives. It was clearly confirmed that the rates of sonochemical decomposition of MO increased with increasing the concentration in both cases of H2O2 and CCl4. The combination of advanced oxidation processes (AOPs) namely hydrogen per-oxide and carbon tetra-chloride with sonolysis harvests the decomposition of wide spectrum of organic contaminants. The combination of sonolysis with H2O2 and CCl4 enhances the production of non-selective radicals to improve the decomposition process. The AOPs is technically feasible and also economic. Based on the results, it was suggested that the rate of MO decomposition can be effectively enhanced by the sonolysis of CCl4 and also for H2O2. It was possible to include order- MO+200 µL H2O2 > MO+100 µL H2O2 > MO+20 µL H2O2 > MO; MO+200 µL CCl4 > MO+100 µL CCl4 > MO+20 µL CCl4 > MO.