A Postsynthetic Modified MOF Hybrid as Heterogeneous Photocatalyst for α-Phenethyl Alcohol and Reusable Fluorescence Sensor.

The recent discovery of lanthanide-based metal-organic frameworks (Ln-MOFs) offers the potential to extend the chemical sensing and catalysis capabilities of metal-organic frameworks (MOFs). Herein, a new europium functionalized material based on MIL-125(Ti)-NH2 is synthesized by covalent postsynthetic modification and shows photocatalytic oxidation properties of α-phenethyl alcohol, and their fluorescence quenching behaviors are investigated. The catalytic efficiency is tested by monitoring the photocatalytic oxidation of α-phenethyl alcohol under ultraviolet light irradiation. Furthermore, MIL-125(Ti)-AM-Eu is developed as a fluorescence sensor integrated with its photocatalytic and luminescent properties. The MIL-125(Ti)-AM-Eu is used for detecting α-phenethyl alcohol, which could be successfully oxidized to acetophenone by the catalyst, and the fluorescence of MIL-125(Ti)-AM-Eu has changed accordingly.