Synthesis and characterization of new spinel Mn۰.۵Cu۰.۵Cr۲O۴ and degradation of Malachite Green from wastewater in comparison with CuCr۲O۴

In this study phase- pure new spinel structure, Mn۰.۵Cu۰.۵Cr۲O۴ was prepared by hydrothermal method successfully and the degradation of Malachite green as an organic pollutant was investigated and compared with CuCr۲O۴. Purification of obtained nanoparticles was measured by using X-ray diffraction method (XRD) in which crystal structure and the structural properties were studied by using X’Pert package and Fullprof program. Also, the morphology of obtained materials was modified by field-effect scanning electron microscopy (FESEM). These materials were characterized by Fourier-transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA), respectively. UV-vis diffuse reflectance analysis was done for determination of band gape which evaluated ۱.۳۷eV.The photocatalytic application of synthesized materials was evaluated by the degradation of malachite green (MG) in the presence of H۲O۲ that were assessed by UV–vis spectroscopy analysis. The comparison study of photocatalytic result reviled that Mn۰.۵Cu۰.۵Cr۲O۴ has higheractivity than CuCr۲O۴.

کلیدواژه ها:

CuCr۲O۴ ، Hydrothermal Method ، Malachite green ، Mn۰.۵Cu۰.۵Cr۲O۴ ، Photocatalytic Activity