放射性核素
离子交换
流出物
水溶液
金属
放射性废物
化学
危险废物
放射化学
离子
核化学
材料科学
废物管理
环境科学
环境工程
工程类
物理
物理化学
有机化学
量子力学
作者
Qi Zhao,Shuai Wang,Yongxiang Wu,Yixuan Wang,S.Y. Ma,Kaimin Shih
标识
DOI:10.3389/fchem.2023.1292979
摘要
Nuclear power has emerged as a pivotal contributor to the global electricity supply owing to its high efficiency and low-carbon characteristics. However, the rapid expansion of the nuclear industry has resulted in the production of a significant amount of hazardous effluents that contain various radionuclides, such as 137Cs and 90Sr. Effectively removing 137Cs and 90Sr from radioactive effluents prior to discharge is a critical challenge. Layered metal sulfides exhibit significant potential as ion exchangers for the efficient uptake of Cs+ and Sr2+ from aqueous solutions owing to their open and exchangeable frameworks and the distinctive properties of their soft S2- ligands. This review provides a detailed account of layered metal sulfides with MaSbc- frameworks (M = Sb, In, Sn), including their synthesis methods, structural characteristics, and Cs+ and Sr2+ removal efficiencies. Furthermore, we highlight the advantages of layered metal sulfides, such as their relatively high ion exchange capacities, broad active pH ranges, and structural stability against acid and radiation, through a comparative evaluation with other conventional ion exchangers. Finally, we discuss the challenges regarding the practical application of layered metal sulfides in radionuclide scavenging.
科研通智能强力驱动
Strongly Powered by AbleSci AI