Influence of Sol-Gel Process Parameters on Structural Properties of CuO Nanoparticles


Abstract views: 340 / PDF downloads: 266

Authors

DOI:

https://doi.org/10.5281/zenodo.7130723

Keywords:

Metal Oxide, CuO, Nanoparticle, Sol-Gel, Calcination Temperature, pH Effect

Abstract

The production of nanostructures by different methods and their use in many application areas have become very important in recent years due to the rapid development of technology. Metal oxide nanostructures attract considerable attention with their utilization as catalysts in chemical industries and in electronic and photonic devices. Nanomaterials in the form of nanoparticles are in demanded by the chemical industry as a result of their superior properties. Among the metal oxides, CuO nanoparticles are of specific interest in catalysis, magnetic storage media, gas sensors, batteries and solar transformer applications owing to their p-type semiconductor and narrow band gap, which varies depending on fabrication conditions. In addition, CuO nanoparticles are widely used as a strong heterogeneous catalyst especially in chemical sensor applications because of its high activity and selectivity in oxidation and reduction reactions. Several methods have been used to synthesize CuO nanoparticles. Among these, sol-gel technique facilitates the production of crystalline nanomaterials with various morphologies and sizes, especially by changing parameters such as temperature, reaction time, pH of the sol solution and concentration of reagents. The aim of this study is to investigate the influence of pH of the sol and calcination temperature on the structural and morphological properties of sol-gel synthesized CuO nanoparticles. The synthesized CuO nanoparticles were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), dynamic light scattering (DLS) and Fourier transform infrared spectroscopy (FTIR). XRD results revealed that synthesized nanoparticles were monoclinic CuO  crystal structure without any impurity. The mean crystallite size of nanoparticles was calculated using the Scherrer formula and found in the range of 20 - 30 nm. Additionally, FTIR spectroscopy analysis also affirmed the formation of pure copper oxide nanoparticles. Our findings confirm that investigated process parameters had an effect on the structural and morphological properties of the synthesized CuO nanoparticles.

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Published

2022-09-25

How to Cite

Koç Delice, T., & Ak Azem, N. F. (2022). Influence of Sol-Gel Process Parameters on Structural Properties of CuO Nanoparticles. Euroasia Journal of Mathematics, Engineering, Natural & Medical Sciences, 9(23), 73–81. https://doi.org/10.5281/zenodo.7130723

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