Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China.
MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China.
Environ Pollut. 2021 Dec 15;291:118076. doi: 10.1016/j.envpol.2021.118076. Epub 2021 Sep 2.
Because the pollutants produced by human activities have destroyed the ecological balance of natural water environment, and caused severe impact on human life safety and environmental security. Hence the task of water environment restoration is imminent. Metal-organic frameworks (MOFs), structured from organic ligands and inorganic metal ions, are notable for their outstanding crystallinity, diverse structures, large surface areas, adsorption performance, and excellent component tunability. The water stability of MOFs is a key requisite for their possible actual applications in separation, catalysis, adsorption, and other water environment remediation areas because it is necessary to safeguard the integrity of the material structure during utilization. In this article, we comprehensively review state-of-the-art research progress on the promising potential of MOFs as excellent nanomaterials to remove contaminants from the water environment. Firstly, the fundamental characteristics and preparation methods of several typical water-stable MOFs include UiO, MIL, and ZIF are introduced. Then, the removal property and mechanism of heavy metal ions, radionuclide contaminants, drugs, and organic dyes by different MOFs were compared. Finally, the application prospect of MOFs in pollutant remediation prospected. In this review, the synthesis methods and application in water pollutant removal are explored, which provide ways toward the effective use of water-stable MOFs in materials design and environmental remediation.
由于人类活动产生的污染物破坏了自然水环境的生态平衡，对人类生活安全和环境安全造成了严重影响。因此，水环境修复的任务迫在眉睫。金属-有机骨架（MOFs）由有机配体和无机金属离子构成，具有出色的结晶度、多样的结构、较大的表面积、吸附性能和优异的组分可调性。MOFs 的水稳定性是其在分离、催化、吸附和其他水环境修复领域实际应用的关键要求，因为在使用过程中必须保护材料结构的完整性。在本文中，我们全面综述了 MOFs 作为去除水环境中污染物的优秀纳米材料的潜在应用的最新研究进展。首先，介绍了几种典型的水稳定 MOFs（包括 UiO、MIL 和 ZIF）的基本特性和制备方法。然后，比较了不同 MOFs 对重金属离子、放射性核素污染物、药物和有机染料的去除性能和机制。最后，展望了 MOFs 在污染物修复中的应用前景。在这篇综述中，探讨了 MOFs 的合成方法及其在水污染物去除中的应用，为在材料设计和环境修复中有效利用水稳定 MOFs 提供了途径。
