A highly sensitive sensor for ethyl acetate by changing fluorescent colour of lanthanide complex
1Department of Food & Environmental Engineering, East University of Heilongjiang, Harbin, People's Republic of China.
Summary
A novel lanthanide complex exhibits blue luminescence and acts as a sensitive fluorescent probe. It can detect ethyl acetate with an ultrafast response, changing color from blue to yellow.
Area of Science:
- Coordination Chemistry
- Materials Science
- Luminescence
Background:
- Lanthanide complexes are known for their unique luminescent properties.
- Developing sensitive fluorescent probes for small molecule detection is an active research area.
- L-O,O´-dibenzoyl tartaric acid (L-DBTA) is a versatile ligand for metal complex synthesis.
Purpose of the Study:
- To synthesize and characterize a new lanthanide complex with potential sensing applications.
- To investigate the luminescent properties of the synthesized complex.
- To evaluate the complex as a fluorescent probe for small molecule detection.
Main Methods:
- Synthesis of the lanthanide complex [La2(L-DBTA)3(CH3OH)2(H2O)2]∙2H2O via a straightforward reaction.
- Characterization of the complex using luminescence spectroscopy.
- Testing the complex's response to ethyl acetate for sensing applications.
Main Results:
- The synthesized lanthanide complex displays blue-light emission originating from the ligand.
- The complex functions as a fluorescent probe, sensitively detecting ethyl acetate.
- A distinct fluorescence color change from blue to yellow indicates the presence of ethyl acetate.
- The probe demonstrates high sensitivity and an ultrafast response time.
Conclusions:
- A novel lanthanide complex based on L-DBTA has been successfully synthesized.
- The complex exhibits promising luminescent properties for sensing applications.
- This lanthanide complex serves as an effective and rapid fluorescent sensor for ethyl acetate.
