Ms. Yulia A. Podkolodnaya Profile

Yulia A. Podkolodnaya

at Saratov State Univ

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Proceedings Article | 4 May 2021 Paper

Synthesis and size-exclusion fractionation of luminescent carbon nanostructures

Yulia Podkolodnaya, Alina Kokorina, Irina Yu. Goryacheva

Proceedings Volume 11845, 1184518 (2021) https://doi.org/10.1117/12.2588675

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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).

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