Yang Xiaotong, Zhou Yi, Hu Jingjing, Zheng Qinwen, Zhao Yunpu, Lv Guocheng, Liao Libing
Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China.
Sci Total Environ. 2024 Dec 1;954:176193. doi: 10.1016/j.scitotenv.2024.176193. Epub 2024 Sep 14.
Heavy metal contamination is a huge hazard to the environment and human health, and research into removing heavy metals from their primary sources (industrial and agricultural wastes) has increased significantly. Adsorption has received interest due to its distinct benefits over other treatment approaches. The distinctive qualities of clay minerals, such as their high specific surface area, strong cation exchange capacity, and varied structures, make them particularly ideal for use in the manufacture of adsorbents. The customizable structure and performance of clay minerals allow for unprecedented diversity in adsorbent creation, opening up new possibilities for the development of high-efficiency and functional adsorption technologies. In this review, various approaches for developing optimal adsorbents from raw materials are presented. Then, the correlation between functionalization and performance is investigated, focusing on the effects of structural features and surface properties on adsorption performance. The research progress on the synthesis of adsorbents using clay minerals and other functional materials is systematically reported. Finally, the challenges and opportunities in designing and utilizing innovative clay mineral adsorbents are discussed.
重金属污染对环境和人类健康构成巨大危害，从重金属主要来源（工业和农业废弃物）中去除重金属的研究显著增加。吸附因其相对于其他处理方法具有明显优势而受到关注。粘土矿物具有独特性质，如高比表面积、强阳离子交换能力和多样结构，使其特别适合用于制造吸附剂。粘土矿物可定制的结构和性能使得吸附剂制备具有前所未有的多样性，为高效和功能性吸附技术的发展开辟了新的可能性。在本综述中，介绍了从原材料开发最佳吸附剂的各种方法。然后，研究了功能化与性能之间的相关性，重点关注结构特征和表面性质对吸附性能的影响。系统报道了使用粘土矿物和其他功能材料合成吸附剂的研究进展。最后，讨论了设计和利用创新型粘土矿物吸附剂所面临的挑战和机遇。
