Abstract
BiFeO3 nanoparticles, Ag/BiFeO3 nanoparticles, and Ag/BiFeO3-MWCNTs (multiwall-carbon nanotubes) nanocomposites were successfully prepared by simple routes and investigated using different tools to explore and reveal their chemical and physical properties. transmission electron microscopy showed that BiFeO3 nanoparticles and Ag/BiFeO3 nanoparticles were homogenously distributed on the tangled MWCNT surface. Furthermore, the addition of silver and MWCNTs to BiFeO3 nanoparticles greatly reduced the band gap of BiFeO3 nanoparticles and enhanced their efficiency for cyanide degradation under visible light irradiation. Finally, Ag/BiFeO3-MWCNTs nanocomposites showed great photocatalytic stability for cyanide degradation in an aqueous solution over five cycles of reuse.