期刊
CHEMICAL ENGINEERING JOURNAL
卷 452, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2022.139234
关键词
Metal -organic framework; Resorcin[4]arene; Luminescent probe; Pesticides
In this study, a new resorcin[4]arene-based metal-organic framework was synthesized and utilized for luminescent detection of herbicides. The metal-organic framework exhibited excellent stability and showed significant enhancement or decrease in luminescence intensity.
In this work, a new resorcin[4]arene-based metal-organic framework, [Zn4L(H2O)10]center dot 10H2O, has been synthe-sized by incorporating Zn(II) cations and a dodecacarboxylic-functionalized resorcin[4]arene (H12L) ligand. The structure of [Zn4L(H2O)10]center dot 10H2O was characterized using a single-crystal X-ray diffraction technique. The two-dimensional layered structures were linked to adjacent layers by hydrogen bonds to form a three-dimensional supramolecular architecture. [Zn4L(H2O)10]center dot 10H2O exhibits excellent stability in water and various organic solvents, therefore, it was used as a luminescent probe to detect pesticides, such as teflubenzuron and oxy-fluorfen. Teflubenzuron can significantly enhance the luminescence intensity of [Zn4L(H2O)10]center dot 10H2O due to the hydrogen bond interaction, whereas oxyfluorfen can decrease the luminescence intensity of [Zn4L(H2O)10]center dot 10H2O, which is attributed to the charge transfer and energy transfer. The luminescence mechanism was sup-ported by the density functional theory calculations. The limit of detection for teflubenzuron and oxyfluorfen was 0.18 mu M and 4.08 mu M, respectively.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据