BIOSYNTHESIS AND CHARACTERIZATION OF COPPER NANOPARTICLES USING MINT (MENTHA SPP.) LEAF EXTRACT
DOI:
https://doi.org/10.33003/fjs-2026-1008-5265Keywords:
Copper Nanoparticles, Green Synthesis, Mint Extract, Surface Plasmon Resonance,, ZetasizerAbstract
The green synthesis of copper nanoparticles (CuNPs) using Mentha (mint) leaf extract as a reducing and capping agent is reported in this study. The extract reduced copper sulfate under alkaline conditions to form stable CuNPs. UV-Vis spectroscopy revealed a surface plasmon resonance (SPR) peak at 240.01 nm, corresponding to a particle size of approximately 37.22 nm. Fourier-transform infrared (FTIR) spectroscopy identified key functional groups: 3304 cm⁻¹ (–OH), 1719 cm⁻¹ (C=O), 1149 cm⁻¹ (C–O), and 678 cm⁻¹ (C–H), confirming the role of mint phytochemicals in nanoparticle stabilization. Zetasizer analysis gave an average hydrodynamic diameter of 37.32 nm, indicating monodisperse distribution. These eco-friendly CuNPs show strong potential for catalytic, antimicrobial, and environmental remediation applications, supporting sustainable nanotechnological approaches.
References
Aparna, Y., Rao, K. E., & Subbarao, P. S. (2012). Synthesis and characterization of CuO nanoparticles by novel sol-gel method. Proceedings of the 2nd International Conference on Environment Science and Biotechnology, 48, 30.
Dar, M. A., Ahsanulhaq, Q., Kim, Y. S., Sohn, J. M., Kim, W. B., & Shin, H. S. (2009). Versatile synthesis of rectangular shaped nanobat-like CuO nanostructures. Applied Surface Science, 255(12), 6279–6284. https://doi.org/10.1016/j.apsusc.2009.02.002
Dhineshbabu, N. R., Rajendran, V., Nithyavathy, N., & Vetumperumal, R. (2016). Study of structural and optical properties of cupric oxide nanoparticles. Applied Nanoscience, 6(6), 933–939. https://doi.org/10.1007/s13204-015-0499-2
Dyab, A. S., Aly, A. M., & Matuk, H. I. (2015). Enhancement and evaluation of peppermint (Mentha piperita L.) beverage. Life Sciences Research, 3, 175–185.
Fitzgerald, K. P., Nairn, J., & Atrens, A. (1998). The chemistry of copper patination. Corrosion Science, 40(12), 2029–2050. https://doi.org/10.1016/S0010-938X(98)00093-6
Khan, Y., Sadia, H., Ali Shah, S. Z., Khan, M. N., Shah, A. A., Ullah, N., … & Khan, M. I. (2022). Classification, synthetic, and characterization approaches to nanoparticles, and their applications in various fields of nanotechnology: A review. Catalysts, 12(11), 1386.
Downloads
Published
Issue
Section
Categories
License
Copyright (c) 2026 Abdullahi Ismail, Gambo Abdulbasid Adamu
This work is licensed under a Creative Commons Attribution 4.0 International License.
