| MOF-1和Tb@MOF-1荧光探针的设计、合成及对痕量Cr2O72-、S2O82-离子的识别 |
| Design and synthesis of MOF-1 and Tb@MOF-1 as fluorescent probes for recognizing trace amounts of Cr2O72- and S2O82- ions |
| 作者 | 单位 | E-mail | | 张成 | 延安大学化学与化工学院, 延安 716000 | | | 贺珍珍 | 延安大学化学与化工学院, 延安 716000 | | | 王文莉 | 延安大学化学与化工学院, 延安 716000 | | | 高文静 | 延安大学化学与化工学院, 延安 716000 | | | 张凤凤 | 延安大学化学与化工学院, 延安 716000 | | | 王潇 | 延安大学化学与化工学院, 延安 716000 | wx2248@126.com | | 唐龙 | 延安大学化学与化工学院, 延安 716000 | | | 岳二林 | 延安大学化学与化工学院, 延安 716000 | | | 王记江 | 延安大学化学与化工学院, 延安 716000 | | | 侯向阳 | 延安大学化学与化工学院, 延安 716000 | |
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| 摘要: 采用5-（（4-吡啶基）甲氧基）-异烟酸（H2PLIA）、1，3，5-三（1-咪唑基）-苯（TIB）合成了金属有机骨架[Cd （PLIA）（TIB）]n （MOF-1）。MOF-1是具有理想一维孔道的二维结构化合物，其一维孔道由柔性三角形PLIA2-配体和刚性三角形TIB配体间隔形成。利用MOF-1易掺杂的优势，采用后修饰合成策略制备了Tb@MOF-1。对MOF-1和Tb@MOF-1进行了基本表征及荧光探针性能研究。2种探针材料具有相同的结构。MOF-1和Tb@MOF-1分别对水溶液中的Cr2O72-和S2O82-离子具有较强荧光识别能力，均有响应时间快，稳定性、选择性、灵敏度高的特点。研究了MOF-1和Tb@MOF-1对Cr2O72-和S2O82-的荧光识别机理，其不同可能与Tb3+离子掺杂有关。 |
| 关键词: 金属有机骨架 合成 表征 荧光探针 Cr2O72- S2O82- |
| 基金项目: 国家自然科学基金（No.22263011，21965037）、陕西省教育厅项目（No.22JY071）和国家大学生创新创业计划项目（No.202210719003）资助。 |
| Abstract: A new fluorescent probe metal-organic framework (MOF) materials formulated as[Cd(PLIA)(TIB)]n (MOF-1) was successfully obtained adopting 5-((4-pyridyl)methoxy)-isophthalic acid (H2PLIA) and 1,3,5-tris(1-imidazolyl)-benzene (TIB). MOF-1 possesses 2D networks with an ideal 1D tunnel, and the 1D tunnel is spaced and driven by the flexible triangle PLIA2- and rigid triangle TIB ligands. Employing the advantage of MOF-1 channel easy doping, efficient luminescent probe Tb@MOF-1 was also constructed using a coordinated post-synthetic modification strategy. MOF-1 and Tb@MOF-1 were fully characterized in detail, and the two probe materials have the same structural feature. The fluorescence recognition performance was investigated in detail, revealing a capability of MOF-1 for sensing Cr2O72-, Tb@MOF-1 for identifying S2O82- anion. Herein, the fabricated fluorescent probes exhibit fascinating features, such as fast response time, remarkable stability, excellent selectivity, and high sensitivity. The possible fluorescence recognition mechanism of Cr2O72- and S2O82- by MOF-1 and Tb@MOF-1 has been investigated, and the difference in the mechanism may be related to Tb3+ ion doping. |
| Keywords: metal-organic framework synthesis characterization fluorescent probe Cr2O72- S2O82- |
| 投稿时间：2022-12-19 修订日期：2023-06-20 |
| 摘要点击次数: 1959 |
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| 张成,贺珍珍,王文莉,高文静,张凤凤,王潇,唐龙,岳二林,王记江,侯向阳.MOF-1和Tb@MOF-1荧光探针的设计、合成及对痕量Cr2O72-、S2O82-离子的识别[J].无机化学学报,2023,39(9):1832-1840. |
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