Removal of Celestine Blue B dye by using CuCo2O4 Nanoparticles Spinel composite

Abstract

This study included a synthesis of CuCo2O4 spinel composite, which was prepared by the co-precipitation method from their aqueous nitrates as starting materials, the prepared spinel composite was characterized by using XRD, FTIR, UV-Visible, AFM, and FESEM spectroscopies. The particles size of the prepared adsorbent surface was found to range from 25-75 nm. As it has been applied in removing toxic organic dyes from textile industry wastewater. This study showed the best optimal conditions for removal of dye was 30 minutes of adsorption time 0.005g of the surface adsorbent, 50 mg.L-1 for Celestine Blue B dye concentration, pH value 5, at a temperature of 298K, gave a high removal of 97%, also found that the negative free energy ∆G and heat of reaction ∆H values, indicating that the reaction is spontaneous and exothermic, while the entropy value ∆S was positive, indicate that the occurrence of disturbance of water molecules around the dyes.