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Magnetic mesoporous silica (Mag-MCM-41) material was synthesized by coating magnetite (Fe3O4) nanoparticles with mesoporous material (MCM-41). Mag-MCM-41 and modified nanomaterials Mag-MCM-41-NN and Mag-MCM-41-NN-Fe+ 3 which were modified with aminopropyl functional groups were prepared for application to phosphate adsorption. Magnetic mesoporous silica (Mag-MCM-41) material shows hexagonal properties and takes part in "mesoporous" material class with a surface area of 923 m2/g that was characterized by N2 adsorption-desorption isotherms, FTIR, TEM, BET and SAXS analyzes. Surface modifications of material were verified through FTIR analysis, elemental analysis, BET and EDTA titration with Fe3+ analysis. Kinetic and adsorption isotherm studies of the phosphate anion were performed using Mag-MCM-41, Mag-MCM-41-NN and Mag-MCM-41-NN-Fe+ 3 adsorbents. After adsorption, the materials could be easily removed from the solution medium with the aid of a magnet. As a result of the kinetic and adsorption isotherm studies of the phosphate anion; it has been determined that the phosphate adsorption method on Mag-MCM-41, Mag-MCM-41-NN and Mag-MCM-41-NN-Fe+ 3 adsorbents was the chemical adsorption method, phosphate adsorption on all adsorbents occured in a single layer and the maximum adsorption capacity of MCM-41-NN-Fe+ 3 adsorbent value (qm) (112.87 mg.g− 1) was higher than other adsorbents. |
