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Temperature effect on CuO nanoparticles via facile hydrothermal approach to effective utilization of UV–visible region for photocatalytic activity
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Temperature effect on CuO nanoparticles via facile hydrothermal approach to effective utilization of UV–visible region for photocatalytic activity
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Journal Article
Temperature effect on CuO nanoparticles via facile hydrothermal approach to effective utilization of UV–visible region for photocatalytic activity
2021
Overview
In this article, CuO nanoparticles have been synthesized successfully using the facile hydrothermal approach with various reaction temperatures (60–220 °C). The structural, optical, compositional, and morphology are studied using various analytical techniques such as X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), diffuse reflectance spectroscopy (DRS), energy-dispersive X-ray analysis (EDAX), laser Raman spectroscopy, and photoluminescence (PL) spectroscopy. The X-ray diffraction pattern revealed pure CuO with monoclinic structure, and the laser Raman study supports XRD results. The FTIR analysis confirmed a pure CuO phase, and elemental studies confirm the CuO stoichiometry. The optical band gap was estimated in between 1.46 and 1.53 eV, and the band gap values are varied due to grain size. The FESEM images reveal those different morphologies such as a mixture of rods with needles, feathers, and a sheaf of rods with different temperatures with the function of temperatures. The change in PL intensity and peak shift was found, and the low recombination of charger carrier was obtained for 180 °C nanoparticles. The photocatalytic degradation efficiency was found to be 67–92% with different temperatures, and the highest degradation was 92% for 180 °C NPs.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
