<![CDATA[This work concerned with the study of adsorption of phenol red dye by using spinel Co1-xMxFe2O4 was prepare by Co-precipitation method at different ratios of (0.2:0.8, 0.5:0.5, 0.8:0.2) and calcinations at temperature 600 C0 for three hours. The conclusion showed that (0.5:0.5) percentage has high activity than other ratio at different temperature. The prepared powder was differentiated by X-ray diffraction, Fourier Transform Technique (FT-IR), UV-Visible Spectroscopy, Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), Atomic Force Microscope (AFM), high performance liquid chromatography (HPLC) were also studied for all spinel. X-ray and Electron Microscopy studies showed the average size of the granules prepared for the composite in this manner (17.44 for Cd and 37.55 for Ag)]]>
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