Nanosized Magnesium doped Copper Chromites Spinel Particles Synthesis and Characterization

Abstract

Magnesium doped copper chromites spinel nanoparticles (Cu 1−x Mg x Cr 2 O 4) where x = 0.2, 0.4, 0.6, and 0.8 is synthesized by sol-gel method and characterized by different techniques like EDS, SEM, Raman spectroscopy, and Photoluminense. Various parameters affecting the sample techniques like temperature and Concentrations. The crystal phase of CuCr 2 O 4 is tetragonal having a space group is 121/amd. We calcined at 750 °C temperature. Its lattice parameters are 6.0341 and 7.7888, which is very close to the reported ones. XRD tells us about the crystal size and dislocation density of samples. Four peaks observed in UV spectra of CuCr 2 O 4 that occurs at different regions, bandgap obtained for the parent sample is 5.02 eV, and when we doped Magnesium then the bandgap changes and becomes 4.17 eV. Similarly, SEM results show that pure copper chromite structure is tetragonal and after doping the other compounds the structure changes according to characteristics of Nanoparticles. In PL spectra four peaks are obtained one at 347 nm, 380 nm, 500 nm and the other is at 600 nm. According to Raman, shift property two peaks are obtained with different wavelengths like 1306 cm −1 and 1465 cm −1 . ED’s results clearly show that copper chromites Nanoparticles successfully synthesized and when we doped Magnesium in copper chromite, the best results are observed.