نتایج جستجو برای: tenorite cuo nanoparticles
تعداد نتایج: 110297 فیلتر نتایج به سال:
Well faceted CuO nanoparticles, were synthesized by thermal-assisted dissociation method at reflux temperature in a short period of time. A possible mechanism for synthesis of such highly pure and stable nanoparticles is tentatively proposed by FT-IR study. The large surface area and rich exposed active sites are expected to endow such nanoparticles with excellent performances in catalysis as d...
BACKGROUND Aryl sulfides have significant importance from biological and pharmaceutical aspects. Transition metal-catalyzed carbon-sulfur cross-coupling reaction represents an important tool for the synthesis of sulfides. Among various transition metals, copper salts or oxides have found vast applicability. RESULTS A simple procedure for the preparation of poly-ionic amberlite resins embedded...
Intrinsic properties of cupric oxide nanoparticles enable effective filtration of arsenic from water
The contamination of arsenic in human drinking water supplies is a serious global health concern. Despite multiple years of research, sustainable arsenic treatment technologies have yet to be developed. This study demonstrates the intrinsic abilities of cupric oxide nanoparticles (CuO-NP) towards arsenic adsorption and the development of a point-of-use filter for field application. X-ray diffra...
In situ recovery (ISR) is the predominant method of uranium extraction in the United States. During ISR, uranium is leached from an ore body and extracted through ion exchange. The resultant production bleed water (PBW) contains contaminants such as arsenic and other heavy metals. Samples of PBW from an active ISR uranium facility were treated with cupric oxide nanoparticles (CuO-NPs). CuO-NP t...
This manuscript reports the use of nanoparticle-modified voltammetric sensors for rapid and green determination chemical oxygen demand in river waters from agricultural waste. Four different variants modified electrodes have been prepared: CuO nanoparticles electrogenerated over Cu covered with Nafion film (CuO/Cu-Nf), graphite–epoxy composites Cu, CuO, Cu–Ni alloy nanoparticles. The response f...
CuO-nanoparticles were found to be an excellent heterogeneous catalyst for C-arylation of active methylene compounds using various aryl halides. The products were obtained in good to excellent yield. The catalyst can be recovered and reused for four cycles with almost no loss in activity.
The copper oxides cuprite (Cu2O) and tenorite (CuO) are ideal candidates for solar cells as they promise high conversion efficiencies according to the Shockley–Queisser limit. However, both cannot readily be doped n-type, thus hampering formation of all oxide p–n junctions cell applications. combination with gallium sesquioxide, in particular, α-Ga2O3 β-Ga2O3, is considered an excellent heteroj...
In this paper, CuO nanoparticles are synthesized using Tilia platyphyllos extract as reducing and stabilizing agents and TiO2are prepared via facile sol-gel method as an ideal support. FT-IR spectroscopy, UV-Vis spectroscopy, X-ray Diffraction (XRD), Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray Spectroscopy (EDS), and Transmission Electron Microscopy (TEM) were used to characte...
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