Fluoride ion activated CO2 sensing using sol-gel system

Yifan Liu, Dayoung Lee, Xin Zhang, Juyoung Yoon

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


CO2 detection has drawn a lot of attention due to its important role in the environment and in medical diagnosis. Two amino substituted naphthalimides are reported as new anion-induced CO2 selective chemosensors. The new naphthalimides contain either a hydrazinecarbothiourea or a hydrazinecarboxylate group which served as an anion recognition site. The addition of F induced a distinct color change and a fluorescent quenching effect, which was revived by subsequent addition of CO2. The naphthalimide bearing a hydrazinecarboxylate group also served as an organo gelator, which showed a unique sol-gel transition as well as color/fluorescent changes with F and CO2.

Original languageEnglish
Pages (from-to)658-663
Number of pages6
JournalDyes and Pigments
StatePublished - 1 Apr 2017

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (CRI No. 2012R1A3A2048814). X.Z. thanks to the support of the National Natural Science Foundation of China (21502040) and Nature Science Foundation of Hebei Province (B2016205211). The mass spectral data were obtained by Korea Basic Science Institute (Seoul) using MS Q-TOF/G6550A (Agilent).

Publisher Copyright:
© 2016


  • CO sensor
  • Carbon dioxide chemosensor
  • Colorimetric sensor
  • Fluorescent chemosensor
  • Fluoride ion sensor


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