摘要
通过物理吸附作用对微量氙气进行捕集,优化材料的微孔尺寸、孔道极化环境等因素,可提高材料表面与高极化率氙分子的结合作用。碳材料具有比表面积高、吸附容量大等优势,但其非极性孔道表面缺少氙吸附的特异性位点。沸石分子筛通过金属离子改性可有效提高对微量氙气的吸附能力,但受限于孔道的刚性结构,难以精密调控其微孔尺寸和极化环境。金属有机框架材料具有结构多样、可设计性强等优势,通过优化孔径尺寸、极化环境和框架柔性等因素,可提高其微量氙气吸附性能。基于微量氙气吸附捕集材料的研究现状,展望了极化微孔材料的设计合成是微量氙气吸附研究的重要方向。
The efficient capture of trace xenon is one of the important technologies in the fields of nuclear-test ban verification,nuclear accident emergency response,and nuclear facility operation supervision.The key to efficient capture of trace xenon is the development of high-performance xenon adsorption materials.Focusing on the key technology of trace xenon capture,this paper summarizes the adsorption principle of trace xenon,and the research progress of xenon adsorption materials both at home and abroad.The advantages and disadvantages of carbon materials,zeolite molecular sieves,metal-organic frameworks materials,and other adsorption materials for trace xenon are compared and analyzed.Finally,based on the research status of trace xenon adsorption and trapping materials,the design and synthesis of polarized microporous materials is expected to be an important direction of trace xenon adsorption research.
作者
盛毓强
陈占营
刘蜀疆
常印忠
李奇
安少杭
马梦瑶
王世联
SHENG Yuqiang;CHEN Zhanying;LIU Shujiang;CHANG Yinzhong;LI Qi;AN Shaohang;MA Mengyao;WANG Shilian(CTBT Beijing National Data Centre and Beijing Radionuclide Laboratory,Beijing 100085,China)
出处
《现代应用物理》
2023年第1期13-27,45,共16页
Modern Applied Physics
基金
国家自然科学基金资助项目(12205126)。
关键词
氙气
吸附
碳材料
沸石分子筛
金属有机框架
xenon
adsorption
carbon material
zeolite molecular sieves
metal-organic frameworks
