Boosting the oxidase-mimicking activity of metal–organic framework nanozymes via heteroatom modulation in the organic linkers
Abstract
By replacing the linear terephthalate linker with five-membered heterocyclic analogues, we synthesized a series of MIL-53(Fe) nanozymes. The incorporated heteroatoms (O or S) effectively modulate the electron density of the metal active sites. Consequently, the MIL-53(Fe)-TDC variant exhibits an approximately six-fold enhancement in oxidase-like activity compared to its counterpart MIL-53(Fe)-BDC.

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