Recent Progress in Metal-Organic Framework Based Fluorescent Sensors for Hazardous Materials Detection

Area of Science:

• Environmental Science
• Materials Science
• Analytical Chemistry

Background:

• Environmental pollution from population growth and industrialization poses significant risks.
• Luminescence-based chemical sensors offer sensitive detection of hazardous materials.
• Metal-organic frameworks (MOFs) are emerging as advanced platforms for sensing applications.

Purpose of the Study:

• To critically review the application of MOFs in detecting a wide range of hazardous substances.
• To discuss the luminescence and sensing mechanisms of MOF-based fluorescent sensors.
• To highlight the advantages of MOFs over traditional detection methods.

Main Methods:

• Review of recent scientific literature on MOF-based fluorescent sensors.
• Analysis of host-guest interactions in MOF sensing mechanisms.
• Categorization of detected hazardous substances (gases, ions, explosives, etc.).

Main Results:

• MOF-based fluorescent sensors demonstrate high sensitivity, reaching the nanomolar range for detection.
• MOFs offer versatile platforms for detecting diverse hazardous substances including gases, heavy metals, and explosives.
• These sensors provide advantages over conventional techniques in terms of sensitivity and specificity.

Conclusions:

• MOF-based fluorescent sensors are highly promising for environmental monitoring and hazardous substance detection.
• Further research into fluorescent MOFs (LMOFs) is crucial for advancing sensing technologies.
• Addressing current challenges will enhance the widespread adoption of LMOFs in practical applications.