Cu2+-induced quenching and recovery of the luminescence
May 15, 2020 · Additionally, in order to investigate the quenching effects of other metal ions, various metal ions were also added into the solution to detect the fluorescence, including K +, Na +, Li +, Ag +, Mg 2+, Ca 2+, Fe 2+ and Fe 3+. The fluorescence intensity of DA-CDs could be quenched by copper ions and then recovered when DFX was added.
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