Investigation of kinetic and surface adsorption of anionic dye on Layered double hydroxide/Nickel -Copper ferrite spinel magnetic nanocomposite

Organic dyes are widely used in industries such as textile, cosmetics, printing, and paper. Organic dyes are an important class of pollutants in wastewater, and it is necessary to find a broadspectrum adsorbent that can effectively remove different kinds of organic dyes. To date, various technologies have been applied to remove organic dyes in industrial effluents, including filtration, oxidation, adsorption and ion exchanges. Among these technologies, adsorption technology is one of the most effective methods for dye removal due to its low cost, high efficiency, simplicity and insensitive to toxic substances. Layered double hydroxides (LDHs), because of their structure and high anionic exchange capacity, have received considerable attention in recent years. The adsorption performance were evaluated by the removal of Congored dye and Layered double hydroxids (Ni0.5Cu0.5Fe2O4-NiFe-LDH)،Ni0.5Cu0.5Fe2O4-MgFe-LDH) ،)Ni0.5Cu0.5Fe2O4-CaFe-LDH) ، )NiFe-LDH(،)MgFe-LDH(، (CaFe-LDH(.Meanwhile, kinetic models, FTIR spectra, X-ray diffraction pattern and scanning electron microscope (SEM) were applied to the experimental data to examine uptake mechanism.Therefore, our work suggests the novel magneticlayerd double hydroxides (Ni0.5Cu0.5Fe2O4-Ni Fe-LDH(،) Ni0.5Cu0.5Fe2O4-Mg Fe-LDH(،(Ni0.5Cu0.5Fe2O4-Ca Fe-LDH) to be applicable for organic dyes wastewater treatment.

کلیدواژه ها:

Organic Dyes ، wastewater ، Surface Adsorption ، spinel magnetic nanocomposite ، Layered double hydroxide/Nickel -Copper