高等学校化学学报 ›› 2022, Vol. 43 ›› Issue (10): 20220115.doi: 10.7503/cjcu20220115

• 分析化学 • 上一篇    下一篇

席夫碱共价有机框架的合成及对I 的识别

王迪1, 钟克利1, 汤立军1, 侯淑华1(), 吕春欣2()   

  1. 1.渤海大学化学与材料工程学院, 锦州 121013
    2.嘉兴学院生物与化学工程学院, 嘉兴 314001
  • 收稿日期:2022-02-28 出版日期:2022-10-10 发布日期:2022-06-21
  • 通讯作者: 侯淑华,吕春欣 E-mail:housh@buaa.edu.cn;chunxin.lu@zjxu.edu.cn
  • 基金资助:
    国家自然科学基金(22005038);辽宁省自然科学基金(2021-MS-314)

Synthesis of Schiff-based Covalent Organic Framework and Its Recognition of I

WANG Di1, ZHONG Keli1, TANG Lijun1, HOU Shuhua1(), LYU Chunxin2()   

  1. 1.College of Chemistry and Materials Engineering,Bohai University,Jinzhou 121013,China
    2.College of Biological,Chemical Sciences and Engineering,Jiaxing University,Jiaxing 314001,China
  • Received:2022-02-28 Online:2022-10-10 Published:2022-06-21
  • Contact: HOU Shuhua,LYU Chunxin E-mail:housh@buaa.edu.cn;chunxin.lu@zjxu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(22005038);the Natural Science Foundation of Liaoning Province, China(2021-MS-314)

摘要:

设计合成了一种新型共价有机框架类荧光探针TpPa-COOH COF, 该探针在THF/H2O(体积比1∶1)混合溶液中能够高选择性识别I?. 向体系中加入I?后, 溶液由浅红色变为黄色, 317 nm处荧光强度明显降低. 该探针具有良好的选择性, 抗干扰能力强, 检出限为0.028 μmol/L, pH适用范围广(1~13), 具有良好的应用前景.

关键词: 共价有机框架, 荧光探针, 碘离子, 裸眼识别

Abstract:

A new type of covalent organic framework fluorescent probe, TpPa-COOH COF, is designed and synthesized. The probe can highly selectively recognize I? in a solution of THF/H2O(volume ratio of1∶1). The color of the solution changed from light red to yellow after adding I? to the probe solution which can be observed with the naked eye, and the fluorescence intensity is significantly reduced at 317 nm. The probe has a high selectivity with a detection limit of 0.028 μmol/L, and the pH range is wide(1~13), which provids a good application prospect in I? detection.

Key words: Covalent organic framework, Fluorescent probe, Iodide ion, Naked eye recognition

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