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ABSTRACT In the present study, highly luminescent N-doped carbon quantum dots were synthesized by surface passivation of citric acid using Ethylenediamine. As synthesized NCQDs were characterized using different techniques as… Click to show full abstract
ABSTRACT In the present study, highly luminescent N-doped carbon quantum dots were synthesized by surface passivation of citric acid using Ethylenediamine. As synthesized NCQDs were characterized using different techniques as TEM, DLS zetasizer, UV-Visible spectroscopy and Photoluminescence spectroscopy. N-CQDs were found to have the approx 6.7 nm diameter and spherical shape as confirmed from TEM. UV-Vis absorption spectra at wavelength 350 nm (λmax = 350 nm) confirmed their formation in the solution. From photoluminescence spectroscopy, it was found these NCQDs emits at wavelength 450 nm ((λex = 350 nm, λem = 450 nm). As-synthesized N-doped CQDs were successfully used for fe3+ ion detection relying on the quenching mechanism.
Journal Title: Integrated Ferroelectrics
Year Published: 2018
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