In the present work, cupric oxide (CuO) films were obtained through thermal annealing of the copper (Cu) films deposited on quartz substrates by DC magnetron sputtering method. The annealing was performed in air atmosphere for different times ranging from 60-240 min at temperature of 400 ºC. The influence of annealing times on structural and morphological properties of the films was investi...

Nano structured materials have wide range of applications due to their interesting size-dependent chemical and physical properties compared to particles of size in the range of micrometer. Copper oxide nano materials are of interest on account of their potential uses in many technological fields. In this study  CuO nanoparticles were synthesized via simple sol gel method using basic CuSO4<...

Chlorinated copper catalysts have shown promise for electroreduction of carbon dioxide to complex products, but the challenging control chlorination keeps shaded potential chlorine as a selectivity promoter. This work develops gas-phase strategy based on exposure diluted hydrochloric acid at different temperatures study effect content in (II) oxide (CuO), (I) (Cu2O), and metallic (Cu) foils. Co...

Quroum sensing system found in many species of bacteria, including Streptococcus agalactiae that use to regulate virulence and pathogenicity characteristics. So, this study achieved detect the inhibitory effect (CuO, ZnO, TiO2) nanoparticles on quorum agalactiae. The bacterial isolates were obtained from vaginal rectal swabs pregnant women who visited maternity children hospital Al-Diwaniyah ci...

Native defects in cuprous oxide Cu2O are investigated by using first-principles calculations based on density-functional theory. Considering the formation of copper and oxygen vacancies, antisites and interstitials, and a copper split-vacancy complex defect, we analyze the electronic structure and calculate their respective formation energies as a function of the change in Fermi level under bot...

Copper oxide (CuO) nanoparticles (NPs) were decorated on reduced graphene (rGO) through the effective synthetic route method. Powder X-ray diffraction, Fourier transform infrared, ultraviolet-visible absorption, and scanning electron microscopy techniques used to analyze chemical structure, functional groups, absorbance, morphology. Under visible light illumination, CuO/rGO nanocomposites have ...

In this paper, we used tetranuclear copper (II) Schiff base complexes, [Cu4 (μ-sal2hn) (μ-N3)2(N3)2] (1) and [Cu4 (μ-salophen) (μ1, 1-N3)2(N3)2] (2), as new precursor in solid-state thermal decomposition for the synthesis of CuO ...

Copper is one of the most important trace elements in municipal solid waste (MSW) combustion. Knowledge of the speciation of copper is fundamental for the understanding of the effects of copper compounds on the combustion chemistry, for the evaluation of the environmental effects of copper in ash leachates and for the development of methods to recover copper from the MSW combustion ash. In this...

BACKGROUND Copper oxide (CuO) nanoparticles have attracted huge attention due to catalytic, electric, optical, photonic, textile, nanofluid, and antibacterial activity depending on the size, shape, and neighboring medium. In the present paper, we synthesized CuO nanoparticles using gum karaya, a natural nontoxic hydrocolloid, by green technology and explored its potential antibacterial applicat...