Topics in Current Chemistry (2020) 378:3
1 3
size (ca. 2.4 nm), and it was possible to regulate their surface states to significantly
improve the QY by adjusting the concentration of oxidants [85].
Fig. 9 a Sustainable and green one-arrow/two-hawks strategy for the preparation of nitrogen-doped carbon materials from egg yolk. b, c UV–Vis absorption and PL spectra of fresh CQDs and after 6 months
under different excitation wavelengths. d, e Fluorescence decay profile of as-synthesized CQDs and
CQDs after 6 months [84]
14
Reprinted from the journal
1 3
size (ca. 2.4 nm), and it was possible to regulate their surface states to significantly
improve the QY by adjusting the concentration of oxidants [85].
Fig. 9 a Sustainable and green one-arrow/two-hawks strategy for the preparation of nitrogen-doped carbon materials from egg yolk. b, c UV–Vis absorption and PL spectra of fresh CQDs and after 6 months
under different excitation wavelengths. d, e Fluorescence decay profile of as-synthesized CQDs and
CQDs after 6 months [84]
14
Reprinted from the journal