A recyclable Eu³⁺-functionalized dual-emissive metal–organic framework for portable, rapid detection and efficient removal of malachite green

Abstract

A europium-functionalized, dual-emissive, metal–organic framework-based fluorescence sensor (EuUCNDA) was constructed via post-synthetic modification of an UiO-66-type precursor through coordination interactions.

Dual modifications of sensitizers and lanthanide ions on a two-dimensional zirconium-based metal–organic framework for photoluminescent detection

“…The incorporation of various lanthanide ions such as terbium and europium in Zr-MOFs and the antenna effect from the photosensitizing linkers to the installed lanthanide ions in Zr-MOFs have thus been reported by researchers from different groups. 35–43 In these studies, Zr-MOFs with three-dimensional (3D) porous structures, such as UiO-66 and MOF-808, were usually used for incorporating lanthanide ions. Compared to 3D Zr-MOFs, two-dimensional (2D) Zr-MOFs that can be fully dispersed as separated molecular sheets in aqueous solutions should provide a more readily available contact between the analyte and luminescent centres in the MOF, which should be more beneficial for PL sensing.…”

Immobilization of europium and terbium ions with tunable ratios on a dispersible two-dimensional metal–organic framework for ratiometric photoluminescence detection of D2O

“…Lanthanide ions such as europium and terbium ions could be incorporated into the highly porous Zr-MOF, and the organic linker of the MOF could act as the antenna for light absorbing and inducing energy transfer to the lanthanide ions; such lanthanide-installed Zr-MOFs with remarkable luminescence characteristics have thus been widely investigated in several recent studies. 28–30,36–40…”