Volume 42, Issue 1 pp. 20-28
Concise Report

Synthetic Control of Thorium Metal-Organic Frameworks for Sequencing and Sensing of Radioiodine Species

Yu Ju

Yu Ju

Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, No.21, Gehu Middle Road, Changzhou, Jiangsu, 213164 China

These authors contribute equally to this work.

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Zi-Jian Li

Zi-Jian Li

Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai, 201800 China

These authors contribute equally to this work.

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Xue Wang

Xue Wang

Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, No.21, Gehu Middle Road, Changzhou, Jiangsu, 213164 China

These authors contribute equally to this work.

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Jie Qiu

Jie Qiu

School of Nuclear Science and Technology, Xi'an Jiaotong University, No.28, West Xianning Road, Xi'an, Shaanxi, 710049 China

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Yiuhon Chan

Yiuhon Chan

School of Nuclear Science and Technology, Xi'an Jiaotong University, No.28, West Xianning Road, Xi'an, Shaanxi, 710049 China

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Zhi-Hui Zhang

Corresponding Author

Zhi-Hui Zhang

Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, No.21, Gehu Middle Road, Changzhou, Jiangsu, 213164 China

E-mail: [email protected], [email protected], [email protected]Search for more papers by this author
Mingyang He

Corresponding Author

Mingyang He

Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, No.21, Gehu Middle Road, Changzhou, Jiangsu, 213164 China

E-mail: [email protected], [email protected], [email protected]Search for more papers by this author
Jian Lin

Corresponding Author

Jian Lin

School of Nuclear Science and Technology, Xi'an Jiaotong University, No.28, West Xianning Road, Xi'an, Shaanxi, 710049 China

E-mail: [email protected], [email protected], [email protected]Search for more papers by this author
First published: 23 August 2023
Citations: 1

Comprehensive Summary

Exploring the physiochemical properties and expanding the applications of actinide-containing materials is paramount to address the escalating challenge of radioactive waste accumulation. However, unlocking the full potential of these materials is largely crippled by the radiotoxicity of the actinides. We report here two porous and luminescent thorium-based metal-organic frameworks (Th-BITD-1 and Th-BITD-2) that serve as a bifunctional platform for sequencing and sensing of radioiodine, a much more radioactive fission product discharged during the nuclear fuel reprocessing. In particular, Th-BITD-1 displays better iodine uptake performance than Th-BITD-2 via the solution-based process and vapor diffusion with the maximum adsorption capacities of 831 and 1099 mg/g, respectively. Furthermore, Th-BITD-1 can function as a highly sensitive luminescence sensor for iodate with a quenching constant (KSV) of 6.6(5) × 103 M−1 and a detection limit of 2.02 μM, respectively, outperforming 2.96(6) × 103 M−1 and 10.5 μM of Th-BITD-2. Moreover, a positive correlation between the sensing efficacy and the iodate adsorption capacity has been revealed. This work highlights the opportunity in designing novel actinide-based MOFs for their potential applications in radiological fields, e.g., radionuclide separation and detection.image

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