scholarly journals PLASMA-CHEMICAL METHODS FOR CONTROL OF BIOTIC CONTAMINANTS

2019 ◽  
pp. 198-202
Author(s):  
G.V. Taran ◽  
V.A. Breslavets ◽  
A.A. Zamuriev ◽  
M.O. Yaroshenko ◽  
P.O. Opalev ◽  
...  
Keyword(s):  
Bacterial Contamination ◽  
Chemical Reactor ◽  
Ozone Treatment ◽  
Oh Radicals ◽  
Microscopic Fungi ◽  
Plasma Chemical ◽  
Chemical Methods ◽  
Egg Shell ◽  
Hatching Eggs ◽  
Methods Of Treatment

The possibility and effectiveness of control of biotic contaminants (bacteria, micromycetes) with ozone and air activated by the plasma chemical reactor were studied as an alternative to the chemical methods of treatment using the model of hatching eggs. It was shown that as a result of the egg shell ozone treatment, bacterial contamination decreased by 3083 times after four days of treatment, and the level of microbiota decreased by 2.6 times after five days of treatment. As a result of the egg shell air treatment, bacterial contamination decreased by 30.56 times after three days of treatment, and the level of contamination with microscopic fungi decreased by 6.9 times on the fifth day of treatment. As the amount of OH radicals in the activated air increased, the level of bacterial culture decreased by 60 times on the third day of treatment, and the level of egg shell contamination with microscopic fungi decreased by 7.2 times on the fifth day of treatment.

scholarly journals Obtaining Silicon Oxide Nanoparticles Doped with Fluorine and Gold Particles by the Pulsed Plasma-Chemical Method

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Galina Kholodnaya ◽  
Roman Sazonov ◽  
Denis Ponomarev ◽  
Igor Zhirkov
Keyword(s):  
Chemical Synthesis ◽  
Silicon Oxide ◽  
Fine Particles ◽  
Chemical Reactor ◽  
Beam Diameter ◽  
Pulsed Plasma ◽  
Plasma Chemical ◽  
Plasma Chemical Synthesis ◽  
Transmission Electron ◽  
Average Size

This paper presents a study on pulsed plasma-chemical synthesis of fluorine- and gold-doped silicon oxide nanopowder. The gold- and fluorine-containing precursors were gold chloride (AuCl3) and sulphur hexafluoride (SF6). Pulsed plasma-chemical synthesis is realized on the laboratory stand, including a plasma-chemical reactor and TEA-500 electron accelerator. The parameters of the electron beam are as follows: 400–450 keV electron energy, 60 ns half-amplitude pulse duration, up to 200 J pulse energy, and 5 cm beam diameter. We confirmed the composite structure of SixOy@Au by using transmission electron microscopy and energy-dispersive spectroscopy. We determined the chemical composition and morphology of synthesized SixOy@Au and SixOy@F nanocomposites. The material contained a SixOy@Au carrier with an average size of 50–150 nm and a shell of fine particles with an average size of 5–10 nm.

Characteristics of a Subthreshold Microwave Discharge in a Wave Beam in Air and the Efficiency of the Plasma-Chemical Reactor

2021 ◽  
Vol 47 (5) ◽  
pp. 498-502
Author(s):  
K. V. Artem’ev ◽  
G. M. Batanov ◽  
A. M. Davydov ◽  
N. K. Berezhetskaya ◽  
V. D. Borzosekov ◽  
...  
Keyword(s):  
Microwave Discharge ◽  
Wave Beam ◽  
Chemical Reactor ◽  
Plasma Chemical ◽  
Plasma Chemical Reactor

Plasma-chemical synthesis of YBa2Cu3O7–y / CuO granular composites

2021 ◽  
pp. 32-37
Author(s):  
Igor Karpov ◽  
◽  
Anatoly Ushakov ◽  
Leonid Fedorov ◽  
Lylya Irtyugo ◽  
...  
Keyword(s):  
Chemical Synthesis ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Chemical Reactor ◽  
Reaction Chamber ◽  
Plasma Chemical ◽  
Plasma Chemical Reactor ◽  
Phase Synthesis ◽  
Pinning Centers ◽  
Granular Composites

The possibility of synthesizing HTSC ceramics in the reaction chamber of a plasma-chemical reactor is shown. The method allows one to significantly reduce the process of solid-phase synthesis and obtain modified HTSC ceramics with a given content of non-superconducting additives that act as pinning centers.

Plasma Chemical Reactor with Exploding Water Jet

2009 ◽  
Vol 29 (4) ◽  
pp. 275-290 ◽  
Author(s):  
Vladimir M. Shmelev ◽  
Alexei V. Saveliev ◽  
Lawrence A. Kennedy
Keyword(s):  
Chemical Reactor ◽  
Water Jet ◽  
Plasma Chemical ◽  
Plasma Chemical Reactor

scholarly journals Study of air-plasma chemical reactor for a new medical device

2013 ◽  
Author(s):  
Н.А. Шарапов ◽  
◽  
В.И. Чуканов ◽  
Р.Р. Дистанов ◽  
Н.П. Козлов ◽  
...  
Keyword(s):  
Medical Device ◽  
Chemical Reactor ◽  
Air Plasma ◽  
Plasma Chemical ◽  
Plasma Chemical Reactor

scholarly journals Analytical estimation of particle shape formation parameters in a plasma-chemical reactor

2016 ◽  
Vol 92 ◽  
pp. 01039
Author(s):  
Ilya A. Zhukov ◽  
Sergei S. Bondarchuk ◽  
Alexander S. Zhukov ◽  
Ivan S. Bondarchuk ◽  
Boris V. Borisov ◽  
...  
Keyword(s):  
Particle Shape ◽  
Chemical Reactor ◽  
Plasma Chemical ◽  
Plasma Chemical Reactor ◽  
Shape Formation ◽  
Analytical Estimation

scholarly journals Application of low-temperature low-pressure hydrogen plasma: treatment of artificially prepared corrosion layers

2014 ◽  
Vol 13 (1) ◽  
Author(s):  
Petra Fojtíková ◽  
Lucie Řádková ◽  
Drahomíra Janová ◽  
František Krčma
Keyword(s):  
Low Temperature ◽  
Chemical Reduction ◽  
Hydrogen Plasma ◽  
Optical Emission ◽  
Low Pressure ◽  
Oh Radicals ◽  
Plasma Chemical ◽  
Duty Cycles ◽  
Fundamental Research ◽  
Pressure Hydrogen

AbstractThe aim of this work is the application of low-temperature low-pressure hydrogen plasma on artificially prepared corrosion layers, so called plasma chemical reduction. It is necessary to use samples with artificially prepared corrosion layers because it is impossible to use the real artifacts for fundamental research. The bronze was chosen as a sample material. Formation of corrosion layers on the bronze samples was carried out in concentrated hydrochloric acid vapors with the addition of sand. The radio-frequency hydrogen plasma was generated in the flowing regime at a pressure of 160 Pa. Different values of supplied power were chosen as well as different discharge modes: continuous or pulsed mode with varied duty cycles. By the combination of supplied power and mode factors, we selected two values of effective power. The process of plasma chemical reduction was monitored by optical emission spectroscopy (OES) and simultaneously, the sample temperature was measured. Rotational temperatures were calculated from OH radicals spectra. Changes in the structure and elemental composition were determined using scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX).

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