基于双Cu (II) 的功能MOF具有对Fe3+和CrO4−离子的光感应能力
Yanjun Chen1, Haiwen Zhang2, Yongshan Wang2
1School of Chemical and Environmental Engineering, Jiaozuo University, Jiaozuo, 454000, China. chenyj5051@126.com.
Journal of fluorescence
|May 22, 2025
概括
开发了两种新的铜协调聚合物 (CP1和CP2),用于敏感检测危险离子. 这些材料具有强烈的光和稳定性,使选择性和可回收的水质监测成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 协调化学 协调化学
- 环境科学 环境科学
背景情况:
- 协调聚合物 (CP) 是具有可调节性质的先进材料.
- 发光CP对于传感应用非常有价值,因为它们的灵敏度和选择性.
- 开发稳定和选择性的环境监测传感器至关重要.
研究的目的:
- 合成和描述两种基于Cu (II) 的新型协调聚合物 (CP1和CP2).
- 调查CP1和CP2的发光特性和特定危险离子的感应能力.
- 评估这些CP的稳定性,选择性和可回收性,用于水质监测.
主要方法:
- 使用4,4'-oxybisbenzoic acid (H2oba) 和bis-pyridyl协同连接物进行基于Cu(II) 的协调聚合物的混合连接物溶液热合成.
- 合成的协调聚合物 (CP1和CP2) 的表征.
- 研究固态光特性和Fe3+和CrO42−离子的传感性能.
主要成果:
- 成功合成了两个Cu (II) 协调聚合物[Cu (oba) bpta (DMF) 2 (CP1) ]和[Cu (oba) bpfb (DMF) 2 (CP2),表现出强烈的固态光和出色的水稳定性.
- CP1对Fe3+检测具有很高的选择性,斯特恩-沃尔默火常数 (KSV) 为2.63 × 105 M−1,检测极限 (LOD) 为0.37 μmol·L−1.1.
- CP2对CrO42−表现出高度敏感,其KSV为1.47 × 105 M−1和LOD为0.65 μmol·L−1.1.
- 两种材料都在多个检测周期中表现出可逆光火,表明它们的可重复使用性.
结论:
- CP1和CP2是有效的发光探针,分别用于Fe3+和CrO42−离子的敏感和选择性检测.
- 可逆光火证明了可回收的传感应用的潜力.
- 这些协调聚合物为危险环境离子的实时,现场水质监测提供了一个有前途的平台.
更多相关视频
06:53Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
Published on: June 9, 2023
1.9K
10:13A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
Published on: April 28, 2023
2.2K
相关概念视频
03:02Colors and Magnetism
11.4K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.4K
01:14Photoluminescence: Applications
362
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
362