Kinetics and Mechanism of Permanganate Oxidation of Enrofloxacin in Aqueous Alkaline Medium

Abstract

The reaction kinetics of oxidation of enrofloxacin by potassium permanganate has been investigated in aqueous alkaline medium using spectrophotometric technique at 30 ± 1°C at constant ionic strength of 0.10 mol L -1 . The reaction exhibits 2:1 stoichiometry (2 KMnO4:1 Enrofloxacin). The order with respect to oxidant and substrate is found to be unity in each, whereas fractional order with re spect to alkali concentration. The oxidation products were identified by using FTIR, LCMS spectral studies. The effects of added products, ionic strength and dielectric constant have been studied on the rate of reaction. Based on the experimental results a suitable mechanism is proposed. There is no evidence of intermediate complex formation, thus, the outer-sphere mechanism is proposed as the mechanism for this reaction.

Arc Discharge Synthesis of Chitosan‐Mediated Copper Nanoparticles for Heterogeneous Catalysis in 4‐Nitrophenol Degradation

“…Due to their thermal conductivity and high surface area to volume ratio, [ 25 ] metal nanoparticles such as copper can play an important role as a catalyst for organic alterations, which include hydration of unsaturated organic molecules, hydrogenation, and hydroxylation. [ 26 ] In nano size, copper is seen to possess an enhancement of properties which makes it entirely different from the corresponding bulk material. [ 27 ] In numerous researches on pollution reduction, Cu‐NPs have been shown to contribute significantly as a heterogeneous reusable catalyst.…”