“Synthesis and Characterization of Magnetically Core-Shell Structured CoFe2O4/SiO2 Nanoparticles; Their Enhanced Antibacterial and Electrocatalytic Properties”

In this work, we report that highly dispersible, controllable size and uniform shape magnetic core-shell CoFe2O4/SiO2 nanoparticles were synthesized by a simple, modified thermal decomposition method. Cobalt ferrite (CoFe2O4) nanoparticles were deposited on the surface of silica (SiO2) by thermal decomposition using precursors of cobalt (II) acetylacetonate, iron (III) acetylacetonate in diphenyl ether in the presence of SiO2. The synthesized samples were studied using different analytical instruments and the experimental results indicates, that the magnetic core-shell CoFe2O4/SiO2 (CF-1 and CF-2) nanoparticles showed superior antibacterial activity compared with that of pure CoFe2O4 nanoparticles. Furthermore, the electrocatalytic performances of the developed electrode materials were investigated by cyclic voltammetry. Impressively, the core-shell structured electrode materials (CoFe2O4/SiO2) showed greater electrocatalytic activity compared to that of pure CoFe2O4 nanoparticles.