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

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外文摘要：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 prod-uct 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.Fur-thermore,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 detec-tion.

外文关键词：

ThoriumMetal-organic frameworksAdsorptionDetectionIodineActinidesRadiochemistryLuminescence

作者：

Yu Ju、Zi-Jian Li、Xue Wang、Jie Qiu、Yiuhon Chan、Zhi-Hui Zhang、Mingyang He、Jian Lin

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作者单位：

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

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

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

基金：

国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金

项目编号：

22076196U22B2013912175024219061632227614722076152

出版年：

2024

DOI：

10.1002/cjoc.202300435

中国化学(英文版)

中国化学会上海有机化学研究所

中国化学(英文版)

CSTPCD

影响因子：0.848

ISSN：1001-604X

年,卷(期)：2024.42(1)

参考文献量61