Open AccessThe Kuzbass Basin coals as a raw material for the preparation of carbon quantum dots
Author(s) -
Tigran L. Prazyan,
D. V. Dyagilev
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1749/1/012046
Subject(s) - quantum dot , anthracite , carbon fibers , photoluminescence , coal , materials science , raw material , band gap , absorption (acoustics) , carbon quantum dots , diffraction , absorption spectroscopy , spectral line , analytical chemistry (journal) , mineralogy , nanotechnology , optoelectronics , chemistry , optics , composite material , physics , organic chemistry , astronomy , composite number
The article discusses a promising method for producing carbon quantum dots (C-dots) from coal. Coal grades A (anthracite), K (coking), OS (lean-sintered) were used as raw materials. The separated particles were investigated by X-ray diffraction and optical methods of analysis. The interplanar distances in C-dots and the phase ratio in the samples are determined. The intrinsic absorption region was determined from the optical spectra and the band gap of the obtained C-dots was estimated. Lines of photoluminescence were found in the UV and visible ranges.