Dual-mode colorimetric and RGB detection of sulfide based on a magnetic Fe3O4/CoFe2O4/Ce-BDC hybrid nanozyme
A dual-mode sensing strategy is presented by integrating a magnetic Fe3O4/CoFe2O4/Ce-BDC (denoted as FCF/Ce-BDC) nanozyme with TMB/H2O2 chromogenic chemistry to construct peroxidase-mimetic hybrids. The FCF/Ce-BDC catalyst efficiently oxidizes 3,3’,5,5’-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H...