The Calcium Zirconate (CaZrO3) catalyst was prepared by solution combustion synthesis method and extensively characterized by XRD, SEM, TGA, DTA, Reflectance spectroscopy, BET surface area and powder density. Congo Red (CR) dye was used as model pollutant to study its photocatalytic degradation under solar light irradiation. The degradation of CR was investigated by COD analyzer and UV-Visible spectroscopy. The influences of catalyst amount, initial CR concentration, pH of the reaction solution and irradiation time were investigated. Results of characterization indicated the successful formation of CaZrO3 catalyst. Recycling experiments confirmed the relative stability of the catalyst.
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