Visualizing Gaseous Nitrogen Dioxide by Ratiometric Fluorescence of Carbon Nanodots–Quantum Dots Hybrid

A novel nanohybrid ratiometric fluorescence probe for on-site and visual determination of nitrogen dioxide has been designed

Yehan Yan; Jian Sun; Kui Zhang; Houjuan Zhu; Huan Yu; Mingtai Sun; Dejian Huang; Suhua Wang

2015

Scholarcy highlights

  • A novel nanohybrid ratiometric fluorescence probe for on-site and visual determination of nitrogen dioxide has been designed
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  • The blue fluorescence of carbon nanodots is insensitive to the analyte, whereas the red emission of quantum dots is quenched by the analyte, resulting in a distinguishable color change from orange-red to blue upon exposure to NO2
  • The nanohybrid probe has been successfully applied in visual detection of gaseous NO2 with a detection limit of 1 ppm, suggesting its potential application for NO2 sensing
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