混合配体构筑的Cd(Ⅱ)基荧光传感有机骨架材料及其性能研究

doi:10.16553/j.cnki.issn1000-985x.2024.0181

人工晶体学报 ›› 2025, Vol. 54 ›› Issue (1): 126-132.DOI: 10.16553/j.cnki.issn1000-985x.2024.0181

混合配体构筑的Cd(Ⅱ)基荧光传感有机骨架材料及其性能研究

王馨莹¹, 乔得聪¹, 潘会宾², 高霞³, 卢久富¹

1.陕西理工大学化学与环境科学学院,催化基础与应用重点实验室,汉中 723001;
2.商洛职业技术学院公共课教学部,商洛 726000;
3.商洛学院化学工程与现代材料学院,商洛 726000

收稿日期:2024-08-26 出版日期:2025-01-15 发布日期:2025-01-22
通信作者: 卢久富,博士,教授。E-mail:jiufulu@163.com
作者简介:王馨莹(2003—),女,陕西省人。E-mail:1334842090@qq.com
基金资助:
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)

Cd(Ⅱ)-Based Fluorescent Sensing Organic Framework Constructed by Mixed Ligands and Its Performance

WANG Xinying¹, QIAO Decong¹, PAN Huibin², GAO Xia³, LU Jiufu¹

1. Shaanxi Province Key Laboratory of Catalysis, College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong 723001, China;
2. Public Basic Teaching Division, Shangluo Vocational & Technical College, Shangluo 726000, China;
3. School of Chemical Engineering & Modern Materials, Shangluo University, Shangluo 726000, China

Received:2024-08-26 Online:2025-01-15 Published:2025-01-22

摘要/Abstract

摘要： 在溶剂热条件下,以Cd(NO₃)₂·4H₂O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。

关键词: Cd(Ⅱ)有机骨架, 混合配体, 晶体结构, 离子检测, 荧光传感

Abstract: Under solvothermal conditions, using Cd(NO₃)₂·4H₂O as the metal source, pentamethylisophthalic acid (H₂MIP) 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.

Key words: Cd(Ⅱ) organic framework, mixed ligand, crystal structure, ions detection, fluorescent sensor

中图分类号:

O641.4

王馨莹, 乔得聪, 潘会宾, 高霞, 卢久富. 混合配体构筑的Cd(Ⅱ)基荧光传感有机骨架材料及其性能研究[J]. 人工晶体学报, 2025, 54(1): 126-132.

WANG Xinying, QIAO Decong, PAN Huibin, GAO Xia, LU Jiufu. Cd(Ⅱ)-Based Fluorescent Sensing Organic Framework Constructed by Mixed Ligands and Its Performance[J]. Journal of Synthetic Crystals, 2025, 54(1): 126-132.

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混合配体构筑的Cd(Ⅱ)基荧光传感有机骨架材料及其性能研究

Cd(Ⅱ)-Based Fluorescent Sensing Organic Framework Constructed by Mixed Ligands and Its Performance

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