Ag⁺-sensitized lanthanide luminescence in Ln³⁺ post-functionalized metal–organic frameworks and Ag⁺ sensing

Abstract

A new class of lanthanide luminescent MOFs was constructed by encapsulating Ln³⁺ into the pores of MIL-121 (Ln³⁺@MIL-121). Ag⁺ was found to be able to greatly enhance the weak visible or NIR luminescence of Ln³⁺@MIL-121 since it can induce more efficient intramolecular energy transfer from the ligand to Ln³⁺ in Ag–Ln co-doped MOFs.