Abstract
The present work aims to synthesize CdOAl2O3 nanocomposite and to study its visible light activated photocatalytic performance against metanil yellow dye. Precipitation method was employed to synthesize pure CdO, Al2O3 and CdOAl2O3 nanoparticles. Diffraction peaks related to cubic CdO and monoclinic θ-Al2O3 were observed in the XRD pattern of the composite. XPS spectrum confirmed the presence of Cd, Al and O in the composite. Peaks related to CdO and OAlO bonds were observed from the FTIR spectrum of the composite. Photocatalytic activity confirmed that the CdOAl2O3 nanocomposite exhibits a maximum degradation efficiency of 82.09% against MY dye which was found to be better than pure CdO and Al2O3 nanoparticles due to the synergistic effect, high surface area and the formation of p-n junction at the interface of CdO and Al2O3. The CdOAl2O3 composite catalyst synthesized via precipitation method seems to be more stable and definitely it will be a potential candidate in photocatalysis related field.
Published Version
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