Synthesis of luminescent carbon particles obtained by carbonization of Beta Vulgaris (beetroot) fruit
Abstract
An effective, economical and eco-friendly method was employed for synthesis of carbon quantum dots (CQDs) with emissive properties in blue colour by carbonization of beta vulgaris (beetroot) fruit. Experiments were made at different temperatures and carbonization times using water as a single solvent. The CQDs obtained exhibited fluorescence after being exposed to an ultraviolet radiation lamp with a wavelength of 254 nm and were analysed by Fourier transform infrared spectroscopy where carboxylates compounds were identified as a responsible for the surface passivation of the CQDs.
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