Issue 10, 2016

Monodispersed carbon nanodots spontaneously separated from combustion soot with excitation-independent photoluminescence

Abstract

We present a facile, low-cost procedure by simple one-step combustion of small organic molecules to obtain ultrafine, hydrophobic, and fluorescent carbon nanodots (CNDs). Without further centrifugation and dialysis, we could easily separate CNDs from combustion soot through spontaneous sedimentation. Transmission electron microscopy and photoluminescence characterization demonstrated that the collected CNDs possessed a monodispersed size distribution with a diameter of 1.9 ± 0.5 nm and excitation-independent luminescence properties. Furthermore, after oxidization treatment, the oxidized CNDs displayed good water solubility and the highest fluorescence intensity in neutral solution.

Graphical abstract: Monodispersed carbon nanodots spontaneously separated from combustion soot with excitation-independent photoluminescence

Article information

Article type
Paper
Submitted
30 Sep 2015
Accepted
12 Jan 2016
First published
15 Jan 2016

RSC Adv., 2016,6, 8456-8460

Monodispersed carbon nanodots spontaneously separated from combustion soot with excitation-independent photoluminescence

H. Zhang, Junting liang, J. Liu, S. Chen, H. Zhang, Z. Tian, Y. Cai, P. Wang, Y. Ye and C. Liang, RSC Adv., 2016, 6, 8456 DOI: 10.1039/C5RA20196A

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