化工进展 ›› 2025, Vol. 44 ›› Issue (1): 354-366.DOI: 10.16085/j.issn.1000-6613.2024-0095

• 材料科学与技术 • 上一篇    下一篇

多孔材料用于废水中放射性核素吸附的研究进展

焦芮(), 周涛(), 孙寒雪, 李吉焱, 朱照琪, 李安()   

  1. 兰州理工大学石油化工学院,甘肃 兰州 730050
  • 收稿日期:2024-01-14 修回日期:2024-04-16 出版日期:2025-01-15 发布日期:2025-02-13
  • 通讯作者: 李安
  • 作者简介:焦芮(1993—),女,讲师,博士,研究方向为微纳孔材料的制备及其在放射性元素吸附领域应用。E-mail:jiaorui@lut.edu.cn
    周涛(2000—),男,硕士研究生,研究方向为微纳孔材料在放射性元素吸附领域应用。E-mail:zt1181439095@163.com
  • 基金资助:
    国家自然科学基金(22006061)

Progress in the study of porous materials for radionuclide adsorption in wastewater

JIAO Rui(), ZHOU Tao(), SUN Hanxue, LI Jiyan, ZHU Zhaoqi, LI An()   

  1. School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
  • Received:2024-01-14 Revised:2024-04-16 Online:2025-01-15 Published:2025-02-13
  • Contact: LI An

摘要:

针对传统吸附剂对放射性元素的去除,存在吸附时间较长以及吸附效果不理想等不足之处;新型多孔吸附材料如共价有机框架(COF)、金属有机框架(MOF)和共轭微孔聚合物(CMP)等,由于优异的物理化学特性,高比表面积、高孔隙率、快速的电荷载流子迁移率和可调的功能性,对于放射性核素的分离有着更高的分离效率。本文针对多种新型多孔吸附材料COF、MOF和超高交联聚合物(HCP)等对放射性元素的去除,通过总结新型多孔吸附材料用于放射性核素吸附分离的最新研究进展;着重讨论了新型多孔吸附材料的设计制备、放射性元素去除性能以及放射性元素去除机理;最后基于上述分析,提出目前新型多孔吸附材料用于放射性核素吸附分离存在的问题,如难以处理粉末状的新型多孔吸附材料,以及在极端化学条件下容易出现结构不稳定的问题,并对未来的相关研究方向进行了展望,例如将研究从纯粹的基础研究扩展到更实用的方面和大力开发有效的合成方法,以获得高产率且无副产物的产品。

关键词: 多孔材料, 放射性核素, 量子筛分, 动态扩散, 高效分离

Abstract:

For the removal of radioactive elements by traditional adsorbents, there are shortcomings such as long adsorption time and unsatisfactory adsorption effect. The new porous adsorbent materials such as covalent organic frameworks (COF), metal-organic frameworks (MOF) and conjugated microporous polymers (CMP) have higher separation efficiencies for radionuclide separation due to the excellent physicochemical properties, high specific surface area, high porosity, fast charge-carrier mobility and tunable functionality. This paper focused on the removal of radioactive elements by various new porous adsorption materials, such as covalent organic frameworks (COF), metal organic frameworks (MOF) and highly crosslinked polymers (HCP) by summarizing the latest research progress on the use of new porous adsorption materials for the adsorption and separation of radioactive nuclides. The design and preparation of new porous adsorption materials, the removal performance of radioactive elements and the removal mechanism of radioactive elements were emphasized. Finally, based on the above analysis, the current problems of new porous adsorbent materials for radionuclide adsorption and separation, such as the difficulty of dealing with new porous adsorbent materials in powder form and the problem of structural instability under extreme chemical conditions, were proposed. The future directions of the research were also envisioned, such as expanding the research from purely basic research to more practical aspects and vigorously development of effective synthesis methods to obtain products with high yields and no by-products.

Key words: spongy substance, radionuclides, quantum sieving, dynamic diffusion, efficient separation

中图分类号: 

京ICP备12046843号-2;京公网安备 11010102001994号
版权所有 © 《化工进展》编辑部
地址:北京市东城区青年湖南街13号 邮编:100011
电子信箱:hgjz@cip.com.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn