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Fig. 4 | Nanoscale Research Letters

Fig. 4

From: Carbon Nanodots as Dual-Mode Nanosensors for Selective Detection of Hydrogen Peroxide

Fig. 4

a Fluorescence spectra of CDs in the presence of different H2O2 concentrations. b Calibration curve of I 500/I 450 of the CDs vs. H2O2 concentration. Insets show the linear detection range of I 500/I 450 of the CDs vs. H2O2 concentration. c Photographic images of the fluorescence CD solution under different concentrations of H2O2. d UV-Vis spectra of CDs in the presence of different H2O2 concentrations. e Calibration curve of A 595/A 555 of the CDs vs. H2O2 concentration. f Photographic images of the CD solution under different concentrations of H2O2

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