Biogenic synthesis of ferrous(III) oxide and Fe3O4/SiO2 using Chlorella sp. and its adsorption properties of water contaminated with copper(II) ions

ABSTRACT. Magnetic nanoparticles (MNPs) are gaining popularity because of their small size allowing for research into the fundamentals magnetism. In wastewater treatment, adsorption methods commonly remove heavy metals, but copper (Cu+2) ion removal using magnetic (NPs) has not been investigated. this study two different modes were used to determine maximum capacity copper(II). The containing Fe3O4 with Chlorella, core-shell Fe3O4/SiO2 Chlorella sp. synthesized and characterized by Fourier transform infrared (FT-IR) analysis, morphology observed scanning electron microscope (SEM), crystalline structure, grain provided energy dispersive X-ray (EDX) diffraction (XRD). Copper(II) showed in both modes. copper(II) reduction percent was obtained Fe3O4/Chlorella 80.3%, (86.9%) result due increase surface area. results indicate that enhances cell provides easy access separation preparation recapture.
 
 KEY WORDS: ion, nanoparticles, sp., SiO2 core-shell, Adsorption percent
 Bull. Chem. Soc. Ethiop. 2022, 36(3), 585-596. DOI: https://dx.doi.org/10.4314/bcse.v36i3.8