for the photoreduction of hexavalent chromium. To boost the photocatalytic efficiency of the
nanohybrid, CoFe 2 O 4 (CFO) nanoparticles were added to ZnO (ZO) nanoparticles. The
photoreduction efficacy of the catalyst was measured for the conversion of hexavalent Cr
into trivalent Cr. The results demonstrate that CFO exhibited a 91.20% photoreduction
efficiency for Cr (VI) compared to CoFe 2 O 4 (86.81%) and ZO (72.52%). This obtained rate …