Liu Hongjuan, Fu Tianyu, Mao Yuanbing
School of Nuclear Science and Technology, University of South China, Hengyang 421001, China.
Department of Chemistry, Illinois Institute of Technology, 3105 South Dearborn Street, Chicago, Illinois 60616, United States.
ACS Omega. 2022 Apr 20;7(17):14430-14456. doi: 10.1021/acsomega.2c00597. eCollection 2022 May 3.
The steady supply of uranium resources and the reduction or elimination of the ecological and human health hazards of wastewater containing uranium make the recovery and detection of uranium in water greatly important. Thus, the development of effective adsorbents and sensors has received growing attention. Metal-organic frameworks (MOFs) possessing fascinating characteristics such as high surface area, high porosity, adjustable pore size, and luminescence have been widely used for either uranium adsorption or sensing. Now pertinent research has transited slowly into simultaneous uranium adsorption and detection. In this review, the progress on the research of MOF-based materials used for both adsorption and detection of uranium in water is first summarized. The adsorption mechanisms between uranium species in aqueous solution and MOF-based materials are elaborated by macroscopic batch experiments combined with microscopic spectral technology. Moreover, the application of MOF-based materials as uranium sensors is focused on their typical structures, sensing mechanisms, and the representative examples. Furthermore, the bifunctional MOF-based materials used for simultaneous detection and adsorption of U(VI) from aqueous solution are introduced. Finally, we also discuss the challenges and perspectives of MOF-based materials for uranium adsorption and detection to provide a useful inspiration and significant reference for further developing better adsorbents and sensors for uranium containment and detection.
铀资源的稳定供应以及减少或消除含铀废水对生态和人类健康的危害，使得水中铀的回收和检测变得极为重要。因此，开发有效的吸附剂和传感器受到了越来越多的关注。金属有机框架材料（MOFs）具有高比表面积、高孔隙率、孔径可调以及发光等迷人特性，已被广泛用于铀的吸附或传感。目前相关研究已逐渐缓慢地转向铀的同步吸附和检测。在这篇综述中，首先总结了用于水中铀吸附和检测的基于MOF的材料的研究进展。通过宏观批量实验结合微观光谱技术，阐述了水溶液中铀物种与基于MOF的材料之间的吸附机理。此外，基于MOF的材料作为铀传感器的应用重点介绍了其典型结构、传感机理及代表性实例。此外，还介绍了用于从水溶液中同步检测和吸附U(VI)的双功能基于MOF的材料。最后，我们还讨论了基于MOF的材料在铀吸附和检测方面面临的挑战与前景，以期为进一步开发更好的铀捕获和检测吸附剂及传感器提供有益的启发和重要参考。
