Lanthanide organic framework as a regenerable luminescent probe for Fe(3+).

Area of Science:

• Materials Science
• Inorganic Chemistry
• Nanotechnology

Background:

• Metal-organic frameworks (MOFs) offer tunable properties for various applications.
• Luminescent MOFs are promising for chemical sensing due to their signal transduction capabilities.
• Developing selective and reusable sensors for environmentally relevant ions like Fe(3+) is crucial.

Purpose of the Study:

• To synthesize and characterize a novel three-dimensional Tb-BTB framework.
• To investigate the potential of this framework as a luminescent sensor for Fe(3+).
• To evaluate the selectivity, sensitivity, and regenerability of the sensor.

Main Methods:

• Solvothermal synthesis of the Tb-BTB framework.
• Single-crystal X-ray diffraction for structural characterization.
• Luminescence spectroscopy for sensing Fe(3+) ion detection and regeneration studies.

Main Results:

• A unique 3D Tb-BTB framework with 1D channels was successfully synthesized and structurally confirmed.
• The framework exhibited high thermal stability.
• Luminescent studies demonstrated high sensitivity and selectivity for Fe(3+) detection.
• The luminescent probe showed simple and rapid regeneration capabilities.

Conclusions:

• The synthesized Tb-BTB framework is a stable and effective luminescent material.
• This framework serves as a highly sensitive and selective sensor for Fe(3+) ions.
• The facile regeneration of the sensor represents a significant advancement in reusable luminescent sensing technology.