4. Conclutions In conclusion the MAC nano-composite with highly efficient adsorption performance has been successfully and directly produced via a simple single-step wet chemical method at room temperature. The resulting composite combined the boch features FeO and active carbon and thus exhibited extraordinary removal capacity and active carbon, and fast adsorption rates for ARS dye removal in water. The adsorption kinetic and equilibrium parameters such as kinetic rate constants, the Langmuir and Freundlich constants, maximum capacity of adsorption, were obtained from the adsorption experiments. These parameters are vary important for