Thermal behavior and non-isothermal kinetics of the polyoxometalate of ciprofloxacin with tungstophosphoric acid

Abstract

The polyoxometalate (CPFX·HCl)₃H₃PW₁₂O₄₀·8H₂O was prepared and characterized by elemental analysis, IR spectra and TG-DTA-DTG. The thermal decomposition mechanism and non-isothermal kinetic parameters of the polyoxometalate were obtained from the analysis of TG-DTG data using the Achar equation, Coats-Redfern equation (CR), Madhusudanan-Krishnan-Ninan equation (MKN) and Horowitz-Metzger equation (HM). And their mathematical expressions of the kinetic compensation effect were also calculated.

Keywords

non-isothermal kinetics / thermal behavior / polyoxometalate / ciprofloxacin / TG-DTA-DTG

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