含硫多孔芳香框架材料的制备及超灵敏检测同步去除汞的双重性能  

Preparation of Sulfur-containing Porous Aromatic Framework Materials and Their Dual Performance in Ultra-sensitive Detection and Simultaneous Removal of Mercury

作　　者：刘星雨 张晓晶 向婷婷 陈士欣 马硕 邵慧敏 崔博 夏春龙 李岩 布乃顺[1] 李丛 LIU Xingyu;ZHANG Xiaojing;XIANG Tingting;CHEN Shixin;MA Shuo;SHAO Huimin;CUI Bo;XIA Chunlong;LI Yan;BU Naishun;LI Cong(School of Environment,Liaoning University,Shenyang 110036,China;College of Chemistry,Liaoning University,Shenyang 110036,China;Fushun Hydrological Bureau,Fushun 113000,China)

机构地区：[1]辽宁大学环境学院,沈阳110036 [2]辽宁大学化学院,沈阳110036 [3]抚顺水文局,抚顺113000

出　　处：《高等学校化学学报》2024年第7期47-56,共10页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:31972522);辽宁省自然科学基金(批准号:2021-MS-149);“兴辽英才计划”青年拔尖人才项目(批准号:XLYC2007032);抚顺水文局课题;辽宁润中供水有限责任公司课题;辽宁大学大学生创新创业训练计划项目资助。

摘　　要：Hg/Hg(Ⅱ)被认为是对人体毒性较大的重金属,制备能超灵敏检测同步高效去除有毒Hg^(2+)的新材料对治理汞污染有重要作用.本文通过Suzuki偶联反应合成了一种含硫多孔芳香框架材料(LNU-19),共轭结构和灵活的噻吩连接片段显著增强了其发光能力,该材料具有良好的孔隙率、比表面积及高亲和力螯合位点(噻吩基团),可实现对Hg^(2+)的双重功能应用.LNU-19具有灵敏度高、选择性好、可视性好及实时响应等优良的传感性能,同时对Hg^(2+)的吸附容量为121.3mg/g.通过引入噻吩位点和调控骨架结构,为优化提升多孔芳香框架制备策略提供了新途径.Hg/Hg(Ⅱ)is considered to be a highly toxic heavy metal to humans,and the preparation of new materials that can detect and remove toxic Hg^(2+)simultaneously and efficiently is an important support for the control of mercury pollution.In this study,a sulfur-containing porous aromatic framework material(named LNU-19)was synthesized by Suzuki coupling reaction,and its conjugated structure and flexible thiophene-linked fragment significantly enhanced its luminescence ability,and the material had good porosity,specific surface area and high affinity chelating site(thiophene group),realizing the dual functional application of LNU-19 to Hg^(2+).LNU-19 has excellent sensing performance such as high sensitivity,good selectivity,good visibility and real-time response,and has an adsorption capacity of 121.3 mg/g for Hg^(2+).In this study,the introduction of thiophene sites and the regulation of the skeleton structure provided a new way to optimize and improve the preparation strategy of porous aromatic frameworks.

关 键 词：SUZUKI偶联 多孔芳香框架 荧光检测 汞吸附 

分 类 号：O657[理学—分析化学] O634[理学—化学]