Kakorina O.A., Kakorin I.A., Panchenko A.N. Detection of impurities in water using nanostructures

DETECTION OF IMPURITIES
IN WATER USING NANOSTRUCTURES

Olesia A. Kakorina
Candidate of Sciences (Physics and Mathematics), Associate Professor,
Department of Information Security,
Volgograd State University
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Prosp. Universitetsky, 100, 400062 Volgograd, Russian Federation

Igor A. Kakorin
Student, Department of Forensic Science and Physical Materials Science,
Volgograd State University
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Prosp. Universitetsky, 100, 400062 Volgograd, Russian Federation

Alexandra N. Panchenko
Student, Department of Forensic Science and Physical Materials Science,
Volgograd State University
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Prosp. Universitetsky, 100, 400062 Volgograd, Russian Federation

Abstract. Saltpeter negatively affects the human body, it contributes to the formation of
a dangerous substance in the blood – methemoglobin, which leads to oxygen starvation. An
increase in methemoglobin up to 60% leads to a fatal outcome. Also, the excess of saltpeter in
water causes poisoning, disorders of the gastrointestinal tract, excretory and endocrine systems,
the destruction of tooth enamel and the appearance of caries. Saltpeter can be determined in
water by chemical analysis of the liquid, as well as using nanomaterials. These structures
have a sufficiently highly developed adsorption surface, this property helps to detect the presence
of saltpeter in water, and at the same time to clean it. The results of the studies made it
possible to establish that after passing water with an admixture of saltpeter, the concentration
of the latter decreased. Thus, the theoretical calculations showing the possibility of saltpeter
adsorption by carbon nanotubes were confirmed. The obtained results and the applied methods
can be used in conducting complex high-performance water examinations.

Key words: nanotubes, adsorption, saltpeter molecule, water analysis, quantum chemical
calculations.

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