Adil Heja Ibrahim, Thalji Mohammad R, Yasin Suhad A, Saeed Ibtisam A, Assiri Mohammed A, Chong Kwok Feng, Ali Gomaa A M
College of Science, University of Duhok Duhok 42001 Iraq.
Independent Researcher Amman Jordan.
RSC Adv. 2022 Jan 7;12(3):1433-1450. doi: 10.1039/d1ra07034g. eCollection 2022 Jan 5.
Environmental heavy metal ions (HMIs) accumulate in living organisms and cause various diseases. Metal-organic frameworks (MOFs) have proven to be promising and effective materials for removing heavy metal ions from contaminated water because of their high porosity, remarkable physical and chemical properties, and high specific surface area. MOFs are self-assembling metal ions or clusters with organic linkers. Metals are used as dowel pins to build two-dimensional or three-dimensional frameworks, and organic linkers serve as carriers. Modern research has mainly focused on designing MOFs-based materials with improved adsorption and separation properties. In this review, for the first time, an in-depth look at the use of MOFs nanofiber materials for HMIs removal applications is provided. This review will focus on the synthesis, properties, and recent advances and provide an understanding of the opportunities and challenges that will arise in the synthesis of future MOFs-nanofiber composites in this area. MOFs decorated on nanofibers possess rapid adsorption kinetics, a high adsorption capacity, excellent selectivity, and good reusability. In addition, the substantial adsorption capacities are mainly due to interactions between the target ions and functional binding groups on the MOFs-nanofiber composites and the highly ordered porous structure.
环境重金属离子（HMIs）在生物体内积累并引发各种疾病。金属有机框架（MOFs）因其高孔隙率、卓越的物理和化学性质以及高比表面积，已被证明是从受污染水中去除重金属离子的有前景且有效的材料。MOFs是金属离子或簇与有机连接体的自组装体。金属用作销钉构建二维或三维框架，有机连接体充当载体。现代研究主要集中在设计具有改进吸附和分离性能的基于MOFs的材料。在本综述中，首次深入探讨了MOFs纳米纤维材料在去除HMIs应用中的使用情况。本综述将聚焦于合成、性质以及最新进展，并对该领域未来MOFs-纳米纤维复合材料合成中将会出现的机遇和挑战进行解读。负载于纳米纤维上的MOFs具有快速的吸附动力学、高吸附容量、优异的选择性和良好的可重复使用性。此外，高吸附容量主要归因于目标离子与MOFs-纳米纤维复合材料上的功能结合基团之间的相互作用以及高度有序的多孔结构。
