Influence of Ce3+ Substitution on the Structural and Photocatalytic Properties of Nickel ferrite (NiFe0.5Ce1.5O4) Nanophotocatalysts for degradation of Azocarmine-G Dye

Author(s): Hemalatha Parangusan, Omar Aljarod, Deepalekshmi Ponnamma and Mariam Al Ali AlMaadeed

Category: Current Issues

Published: 19 March 2018

Views: 2790

Bull. Chem. Pharma Res., 2018, 2(1), 49–56.

Abstract: Nickel ferrite and cerium substituted nickel ferrite nanoparticles were synthesized by co-precipitation method. The structural, morphological, optical and photocatalytic properties were investigated. The crystallite size was found to decrease by the substitution of cerium ions in the nickel ferrite. Characteristic UV-Vis absorption data showed red shift for the cerium substituted sample with spherical morphology. Presence of Fe 2p, Ni 2p, and O 1s levels with higher intensities were observed for the cerium substituted nickel ferrite as evidenced from its XPS spectrum. In the presence of normal sunlight the photodegradation efficiencies of synthesized nanoparticles were investigated using the Azocarmine G dye. The cerium substituted nickel ferrite nanoparticles showed higher photocatalytic activity for dye degradation than pure nickel ferrite. This enhanced photocatalytic activity is correlated to the smaller particle size and higher optical absorption property.

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