The UV-vis absorption spectrum of copper oxide nanoparticles synthesized chemically can span visible light to near-infrared regions, with the exact range depending on the specific type of copper oxide and the synthesis method used. Generally, the absorption of copper oxide nanoparticles synthesized chemically peaks in the visible to near-infrared regions at around 400 to 800 nm.
The type of copper oxide and the synthesis method used can significantly affect the wavelength and amount of UV-vis absorption. For example, the synthesis method can affect the nanoparticles' size, shape, and crystal structure, all of which can influence the absorption spectrum. Additionally, the composition of the surrounding environment, such as the presence of solvent or surfactants, can also impact the absorption spectrum.
In summary, the UV-vis absorption of copper oxide nanoparticles synthesized chemically can vary depending on the specific type of copper oxide, the synthesis method used, and the surrounding environment.
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