Green Synthesis of Recyclable BaPbFe2O6 Nanoparticles for Photocatalytic Removal of Organic Dye Pollutant

Abstract

This study focuses on the synthesis of BaPbFe2O6 and modifying its photocatalytic activity by precipitation method on brilliant green (BG) dye. According to the characterization data, the UV-Vis absorption spectrum shows several peaks with an optical band gap of 5.45 eV. FESEM images showed irregular shapes of BaPbFe2O6 and EDX confirmed the presence of, Ba, Pb, Fe and O elements. The average particle size measured with maximum diffraction peak using Scherrer’s equation was 12.31nm. XPS represents the different oxidation states of the elements. FTIR images show the presence of oxide film on the surface with a band gap of 500-600 cm-1 given as the characteristic stretched band of Pb-O. Maximum degradation is shown on the above optimum condition and complete degradation was held in 20 minutes on optimum conditions. The degradation rate of BaPbFe2O6 is 86.89% of 4*10-5 M for BG dye by exposing to sunlight for 20 minutes. Degradation of BG dye occurs due to the formation of hydroxyl radicals(.OH) on exposure to sunlight following pseudo first order kinetics. Therefore, BaPbFe2O6 synthesized in this paper can be used for the degradation of other exogenous organisms and for the treatment of wastewater and environmental polluted samples.