Synthesis and size-exclusion fractionation of luminescent carbon nanostructures

Yulia A. Podkolodnaya; Alina A. Kokorina; Irina Yu. Goryacheva

doi:10.1117/12.2588675

4 May 2021 Synthesis and size-exclusion fractionation of luminescent carbon nanostructures

Yulia A. Podkolodnaya, Alina A. Kokorina, Irina Yu. Goryacheva

Proceedings Volume 11845, Saratov Fall Meeting 2020: Optical and Nanotechnologies for Biology and Medicine; 1184518 (2021) https://doi.org/10.1117/12.2588675
Event: Saratov Fall Meeting 2020, 2020, Saratov, Russian Federation

Abstract

We demonstrate luminescent carbon nanostructures (LCNs) with yellow-orange emission synthesized from citric acid (CA) and urea by hydrothermal treatment. LCNs were treated in water and N,N- dimethylformamide (DMF) at 160° for 6 hours. In this case, an increase of the solvent polarity provides the shifting of the LCNs luminescence to the longer emissive region. The LCNs mixture treated in DMF was fractionated by size-exclusion chromatography. It was obtained 33 fractions with three types of emissive sites at 460 nm (fractions 1-7 and 11-33), 540 nm (fractions 8-13), and 620 nm (fractions 12-33).

Citation Download Citation

Yulia A. Podkolodnaya, Alina A. Kokorina, and Irina Yu. Goryacheva "Synthesis and size-exclusion fractionation of luminescent carbon nanostructures", Proc. SPIE 11845, Saratov Fall Meeting 2020: Optical and Nanotechnologies for Biology and Medicine, 1184518 (4 May 2021); https://doi.org/10.1117/12.2588675

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