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Title: Graphene quantum dots (GQDs) from organic acids
Authors: Naik, Mude Jaya Prakash
Mandal, Peetam
Debbarma, Jhuma
Saha, Mitali
Keywords: Tartaric acid;Ascorbic acid;Pyrolysis;DLS;FTIR;AFM;GQDs
Issue Date: Jun-2019
Publisher: NISCAIR-CSIR, India
Abstract: An environmentally eco-friendly method of synthesis of graphene quantum dots (GQDs) was reported using pyrolysis of organic acids, viz., tartaric acid and ascorbic acid at 150-160 °C, which produce (GQDs) in the presence of NaOH. The heating time and effect of different pH on the formation of GQDs have been studied in detail to optimize the reaction conditions. The UV-visible absorption and normalized fluorescence spectra have been applied to analyze the optical and luminescent properties of GQDs. The particles size distribution of the GQDs obtained from different organic acids at different pH has been also determined. The microstructures and surface morphology have been studied by atomic force microscope (AFM).
Page(s): 128-134
ISSN: 2581-8198 (Online)
Appears in Collections:AIR Vol.01(2) [June 2019]

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