摘要
在溶剂热条件下,以Cd(NO_(3))_(2)·4H_(2)O为金属源,五甲基间苯二甲酸(H2MIP)配体和1,3-双(2-甲基-1H-咪唑-1-基)丙烷(BMIP)为混合配体,构筑了一例新型Cd(Ⅱ)有机骨架材料{[Cd(MIP)(BMIP)]·2/3DMF}_n(SNUT-47)。X射线单晶衍射结果表明,SNUT-47呈现出二维双层有机骨架结构,并进一步通过粉末X射线衍射、红外光谱、热重分析等技术手段对得到的配合物进行表征,实验值与模拟值的各衍射峰位置吻合良好,表明所合成SNUT-47材料具有优异的相纯度和可重复性。荧光实验结果表明,SNUT-47具有优异的荧光性能,对水溶液中的Na^(+)表现出高度的荧光增强效应,可作为荧光传感器对Na+实现高效检测,检测限可达2.56×10^(-6)mol/L。此外,SNUT-47在循环实验后仅需水洗即可轻松回收,具有良好的循环使用性能。
Under solvothermal conditions,using Cd(NO_(3))_(2)·4H_(2)O as the metal source,pentamethylisophthalic acid(H 2 MIP)ligand and 1,3-bis(2-methyl-1H-imidazol-1-yl)propane(BMIP)as mixed ligands,a novel Cd(Ⅱ)organic framework material{[Cd(MIP)(BMIP)]·2/3DMF}_(n)(SNUT-47)was constructed.X-ray single-crystal diffraction indicates that SNUT-47 exhibits a two-dimensional bilayer organic framework structure.The obtained complex was further characterized by powder X-ray diffraction,infrared spectroscopy,thermogravimetric analysis and other techniques.The positions of the experimental and simulated diffraction peaks match well,indicating that the synthesized SNUT-47 material has excellent phase purity and reproducibility.Fluorescence experiments show that SNUT-47 possesses excellent fluorescence properties and exhibits a significant fluorescence enhancement effect for Na+in aqueous solution,making it an efficient fluorescent sensor for the detection of Na^(+)with a detection limit of 2.56×10^(-6)mol/L.Additionally,SNUT-47 can be easily recycled after cyclic experiments with just water washing,demonstrating good recyclability.
作者
王馨莹
乔得聪
潘会宾
高霞
卢久富
WANG Xinying;QIAO Decong;PAN Huibin;GAO Xia;LU Jiufu(Shaanxi Province Key Laboratory of Catalysis,College of Chemical and Environment Science,Shaanxi University of Technology,Hanzhong 723001,China;Public Basic Teaching Division,Shangluo Vocational&Technical College,Shangluo 726000,China;School of Chemical Engineering&Modern Materials,Shangluo University,Shangluo 726000,China)
出处
《人工晶体学报》
北大核心
2025年第1期126-132,共7页
Journal of Synthetic Crystals
基金
陕西理工大学大学生创新创业训练计划项目(202410720069)
国家自然科学基金(22003037)。
