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A Photoluminescent Uranyl Complex for Dual-Platform X-ray Dose Detection
Cong Li1, Jian Xie2, Baowei Hu2
1School of Information Engineering, Zhejiang Ocean University, Zhoushan 316000, China.
Inorganic Chemistry
|July 24, 2025
Summary
A new uranyl oxalate complex (U-OX) shows fluorescence quenching under UV and X-ray exposure due to radiation-induced radicals. This stable complex is a promising candidate for dual-platform X-ray dosimetry.
Area of Science:
- Materials Science
- Radiochemistry
- Nanotechnology
Background:
- Uranyl complexes are investigated for various applications.
- Development of sensitive and stable radiation detectors is crucial.
- Self-assembly offers a pathway to novel molecular structures.
Purpose of the Study:
- To synthesize and characterize a novel 0D uranyl molecular complex.
- To investigate the fluorescence response of the complex to UV and X-ray irradiation.
- To evaluate the potential of the complex as a dosimeter for X-ray detection.
Main Methods:
- Melt-assisted reaction synthesis of the uranyl complex.
- Spectroscopic analysis (UV-Vis, fluorescence) to study irradiation effects.
- Stability tests under radiolysis and humidity.
Main Results:
- A 0D uranyl molecular complex, UO2(HOX)2(H2O)·HPIP·2H2O (U-OX), was successfully synthesized.
- Significant fluorescence quenching was observed upon UV and X-ray irradiation, linked to oxalate free radicals.
- The U-OX complex exhibited excellent radiolytic and humidity stability.
Conclusions:
- U-OX is a promising material for X-ray dose detection.
- The dual signals (free radicals and fluorescence quenching) allow for dual-platform detection.
- The complex's stability makes it suitable for harsh environments.
