Synthesis of copper oxide nano particles: Effect of rosemary and olive leaf extracts as surface modifier

Document Type : Original Research Paper

Authors

1 Department of Materials Engineering, Faculty of Engineering, University of Sistan and Baluchestan

2 Department of Materials Engineering, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran

10.22111/cnmst.2026.54636.1280

Abstract

Copper oxide nano particles were synthesized by precipitation synthesis method. Extracts of rosemary and olive leaves were obtained and used as surface modifiers (SMs) during the synthesis process. Results generally showed that melaconite CuO phase was formed. Furthermore, Fourier transform infrared (FTIR) spectra illustrated corresponding bands of Cu-O bonds in all samples. In addition, scanning electron micrographs (SEM) showed that in all samples, highly agglomerated nano particles were synthesized. Moreover, extracts of rosemary and olive leaves caused to decrease of the particle size of copper oxide samples. Also, atomic force micrographs (AFM) and transmission electron micrographs (TEM) illustrated that the size of particles was in nano range dimension. Moreover, AFM and TEM micrographs showed that morphology of particles was mainly rod-like. Band gap value of samples were estimated based on UV-Vis spectra. Considerable band gap broadening of powders in comparison to the bulk one, was observed and confirmed the formation of synthesized nano particles was occurred.

Keywords

References

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Challenges in Nano and Micro Scale Science and Technology
Volume 13, Issue 2
September 2025
Pages 57-62

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