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Issue 32, 2015
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The sonochemical synthesis of Ga@C-dots particles

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This research article is focused on a one-step sonochemical fabrication of carbon dots (C-dots) doped with Ga atom (Ga@C-dots). The synthesis is carried out by sonicating in molten Ga, polyethylene glycol (PEG-400) as the reaction medium for 30–120 min. The produced Ga@C-dots is present in the PEG supernatant and has an average diameter of 5 ± 2 nm. Herein, fluorescence is used to probe the emission of Ga@C-dots and to examine if it differs from that of pristine C-dots. The new product was also characterized by fluorimetric, surface charge potential, and XPS (X-ray photoelectron spectroscopy) measurements. It was revealed that the physical properties of the Ga@C-dots are different from pristine C-dots. We attribute the fluorescence spectrum to energy transfer from the C-dots to the Ga particles. Ga@C-dots show high photosensitization with respect to pristine C-dots.

Graphical abstract: The sonochemical synthesis of Ga@C-dots particles

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Article information

19 Jan 2015
20 Feb 2015
First published
20 Feb 2015

RSC Adv., 2015,5, 25533-25540
Article type
Author version available

The sonochemical synthesis of Ga@C-dots particles

V. B. Kumar, I. Perelshtein, A. Lipovsky, Z. Porat and A. Gedanken, RSC Adv., 2015, 5, 25533
DOI: 10.1039/C5RA01101A

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