Synthesis, Characterization and Photocatalytic study of FeCr۲O۴@ZnO@MgO Core-Shell Nanoparticle.

In the present work, the sol-gel derived powders of the chemical form FeCr۲O۴@ZnO@MgO Core-shell, has been synthesized and used as a photocatalyst. The synthesized core-shell nanoparticles characterized by various analytical techniques including FTIR, XRD, SEM-EDAX, and HR-TEM-SEAD. The successful performance of synthesized core-shell photocatalyst FeCr۲O۴@ZnO@MgO has been also demonstrated for the complete mineralization of Orange G dye. The effect of various operational parameters used in dye degradation such as concentration of dye, light intensity, amount of photocatalyst, effect of light and effect of electrolyte has been studied on the rate of reaction. TEM analysis clearly shows two layers of ZnO and MgO on FeCr۲O۴. The highest degradation rate was found with concentration of Orange G dye ۱۰ ppm, ۰.۸ g of FeCr۲O۴@ZnO@MgO and time ۵۰ min. The recyclability of the photocatalyst, FeCr۲O۴@ZnO@MgO was performed up to four runs. The degradation mechanism has been established by using LC-MS analysis and it was used to track the numerous intermediate products formed during the course of Orange G dye degradation.

کلیدواژه ها:

Sol-gel ، Photocatalytic degradation ، Orange G dye ، LC-MS