Open AccessPhotoluminescent Recognition of Strong Alcoholic Beverages with Carbon Nanoparticles
Author(s) -
I.I. Ivanov,
Alexander N. Zaderko,
V. Lysenko,
Thierry Clopeau,
Vladyslav V. Lisnyak,
V. A. Skryshevsky
Publication year - 2021
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.1c01953
Subject(s) - carbonization , photoluminescence , anhydrous , nanoparticle , citric acid , annealing (glass) , carbon fibers , ethanol , chemical engineering , carbon nanoparticles , urea , materials science , chemistry , nanotechnology , organic chemistry , scanning electron microscope , composite material , optoelectronics , composite number , engineering
A simple sensitive method for nonspecific recognition of armagnac, cognac, whiskey, and ethanol/water mixture was developed by using photoluminescence (PL) of carbon nanoparticles (NPs). The carbon NPs were synthesized from the mixture of urea and anhydrous citric acid, followed by few annealing processes to achieve the full effect by solvothermal carbonization. PL features of carbon NPs depend on the alcohol environments in which the NPs are dispersed. PL/PL excitation maps of the alcoholic beverages were mathematically treated, and a final principal component analysis diagram allows visualization of different clusters corresponding to each beverage. The optimal measurement conditions (concentration of NPs in colloidal solution and excitation wavelength) were defined to ensure a reliable recognition level.