Adsorption of safranin dye from their aqueous solutions by using CA and Nano FeO/CA

Abstract

The safranin dye adsorption from the surface of Nano Iron oxide, using UV-visible spectroscopy device. The effect of temperature within the range )328-298) Kelvin. In the adsorption, process of safranin dye was investigated. The results showed that the adsorption increased with increasing temperature, i.e. the reaction is endothermic (adsorption and absorption).Dye removal was (R% = 97.691) at acid medium. This study indicated the susceptibility of Nano Iron oxide (Nano FeO/CA) in removing safranin dye with a high efficiency of aqueous solution. The material Nano FeO / CA had a better adsorption capacity than CA at concentration of (5) ppm of the dye and was (1.910 mg / g).