Synthesis of core-shell nanoparticles for the removal of toxic pollutants in aqueous medium
In this work two active photo-catalysts were synthetized and tested for the removal of methylene blue and
arsenic in aqueous solutions. The two catalysts (Fe3O4/SiO2/TiO2-Al and Fe3O4-SiO2/Zr-TiO2) were
characterized by nano-size, guaranteeing a large specific surface area and a noticeable number of active sites
and resulted active in the visible spectra (400-800 nm). The nanoparticles were characterized by BET, FE-SEM
and EDS methods. The two nano-materials showed high As and methylene blue removal efficiency and were