The iron-manganese bimetal-MOF with double mimic enzyme: DFT verification and colorimetric detection of Cr(vi)

This study was found for the first time that the iron-manganese bimetal-MOF (Fe x Mn y -MOF) had dual mimic enzyme activity. Density functional theory (DFT) proved this mechanism, and the oxidase-like enzyme of the catalyst was used for the sensitive detection of Cr( vi ).