A new 3D Cd-MOF with 2fold interpenetrated as "turn-on/turn-off" fluorescent sensor for selective and sensitive detection of Cu2+, Al3+and Fe3+ions
JOURNAL OF MOLECULAR STRUCTURE(2024)
摘要
The quantitative research with high sensitivity of metal ions has been increasingly important due to the influence to the environment and human health. In this work, a new luminescent Cd-MOF has successfully been con-structed by one-dimensional spiral chain-shaped CdO6 clusters, H2O and 1-(4-carboxyphenyl)-5-methyl-4-oxo-1,4-dihydropyridazine-3-carboxylic acid ligands (H2(4-PDCA)), namely [Cd2(H2O)(4-PDCA)2]n (SNUT-19), which were further characterized by single crystal X-ray diffraction, PXRD, FT-IR and TGA. Single crystal X-ray analysis revealed that SNUT-19 exhibits unique 1D [Cd-O-Cd]infinity chain, further bridging by the ligand to form a three-dimensional (3D) structure with a 2-fold interpenetrated structure. SNUT-19 exhibits excellent water stability and good solid luminescence properties. In addition, the luminescence sensing experiments show that SNUT-19 as a fluorescent sensor for "turn on" and "turn off" luminescence sensitive detection of Cu2+, Al3+ and Fe3+ ions in aqueous media, which sensing mechanisms also have been investigated.
更多查看译文
关键词
Metal organic frameworks,Luminescence properties,Sensitive detection,Sensing mechanisms
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要