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LIFs-Based Fluorescent Analysis of Silver Ions in Water Using AIEgen-Embedded PVA Hydrogel
Li Yao1,2,3, Lixia Feng1, Mengting Wang1
1Shenzhen Research Institute of Hunan University, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China.
Luminescence : the Journal of Biological and Chemical Luminescence
|October 30, 2024
Summary
A new polyvinyl alcohol (PVA) hydrogel sensor with aggregation-induced emission detects silver ions in water. This portable laser-induced fluorescence spectroscopy (LIFs) method offers sensitive, on-site analysis for environmental monitoring.
Area of Science:
- Environmental Chemistry
- Analytical Chemistry
- Materials Science
Background:
- Accurate detection of silver ions is crucial for human health and effective wastewater treatment.
- Existing methods for silver ion analysis may lack portability, reliability, or convenience for environmental applications.
Purpose of the Study:
- To develop a novel sensing material for direct silver ion detection in water.
- To integrate this material with a portable device for on-site, real-time environmental water analysis.
Main Methods:
- Fabrication of a polyvinyl alcohol (PVA) hydrogel-based sensing material utilizing an aggregation-induced emission strategy.
- Combination with a portable laser-induced fluorescence spectroscopy (LIFs) device.
- Optimization of a fluorescence turn-on strategy for complex natural water samples.
Main Results:
- The developed sensing material demonstrated operational excellence and high sensitivity for silver ion detection, with a limit down to 1 ppb.
- The fluorescence turn-on strategy ensured accuracy and stability in complex environmental water matrices.
- The system proved suitable for direct quantification of silver ions.
Conclusions:
- A stable, convenient, and sensitive strategy for on-site, real-time silver ion analysis in environmental water samples has been established.
- The PVA hydrogel-based sensor integrated with LIFs offers a promising solution for environmental monitoring.
- This approach enhances both human health protection and wastewater treatment efficiency.
