Тип публикации: статья из журнала
Год издания: 2016
Идентификатор DOI: 10.1016/j.vacuum.2016.03.025
Ключевые слова: Oxides, Vapor deposition, X-ray diffraction, Transmission electron microscopy (TEM), Catalytic properties, Azo dyes, Crystalline materials, Electric discharges, Electron microscopy, Energy dispersive spectroscopy, Fourier transform infrared spectroscopy, Gas mixtures, Gases, Oxygen, Particle size, Protactinium, Synthesis (chemical), Transmission electron microscopy, X ray diffraction, X ray spectroscopy, Average particle size, Copper oxide nanoparticles, Energy dispersive X ray spectroscopy, Evaporation-condensation, Influence of oxygen, Photocatalytic property, Plasma-chemical process, High resolution transmission electron microscopy
Аннотация: This paper describes the synthesis of copper oxide nanoparticles with different percentages of CuO and Cu2O phases. It was achieved by the control of the percentage of oxygen in the gas mixture (N-2 + O-2) in a plasma-chemical process of evaporation-condensation by means of low-pressure arc discharge. In all the experiments, the prПоказать полностьюessure in the plasma-chemical reactor remained constant at 60 Pa. By means of X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR) it was found that the average particle size was 6 nm, and Cu2O phase content decreases with increasing oxygen content in the gas mixture. High photocatalytic properties of Cu2O powder were shown by the example of the reaction of the methyl orange dye decomposition in water solution. The problems, associated with the performance of this method and the formation of crystalline phases, are discussed. (C) 2016 Elsevier Ltd. All rights reserved.
Журнал: VACUUM
Выпуск журнала: Vol. 128
Номера страниц: 123-127
ISSN журнала: 0042207X
Место издания: OXFORD
Издатель: PERGAMON-ELSEVIER SCIENCE LTD