Influence of green synthesis factors on formed of copper nanoparticles (Cu NPs)

Le Manh Cuong; Nguyễn Đình Sửu; Lưu Thị Lan Anh

doi:10.62239/jca.2025.025

Influence of green synthesis factors on formed of copper nanoparticles (Cu NPs)

Authors

Le Manh Cuong Faculty of Building Material, National University of Civil Engineering, Hanoi 100000, Vietnam
Nguyen Dinh Suu Faculty Engineering Physics, Hanoi University of Science and Technology
Luu Thi Lan Anh Faculty Engineering Physics, Hanoi University of Science and Technology

DOI:

https://doi.org/10.62239/jca.2025.025

Keywords:

Green method, Copper nanoparticles, Clitoria ternatea

Abstract

This study presents a green synthesis method for copper nanoparticles (Cu NPs) using butterfly pea flower (Clitoria ternatea) extract as a reducing and stabilizing agent. The effects of different copper salts (CuSO₄, CuCl₂, Cu(CH₃COO)_2, Cu(NO₃)₂) and the volume ratio between the plant extract and copper salt solution on CuNPs formation were investigated. XRD analysis confirmed the formation of face-centered cubic crystalline CuNPs with crystallite sizes ranging from 30 to 40 nm. FESEM images revealed non-uniform particle morphology with sizes ranging from several hundred nanometers to approximately 1 µm. FTIR and Raman spectroscopy demonstrated the role of functional groups in the reduction and stabilization processes. Among the salts examined, Cu(NO₃)₂ produced smaller and more uniform nanoparticles, especially at a plant extract-to-salt volume ratio of 2:1. This work contributes to the development of eco-friendly nanomaterials using plant-based synthesis routes.

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Published

30-06-2025

Issue

Vol. 14 No. 2 (2025): June

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

How to Cite

Influence of green synthesis factors on formed of copper nanoparticles (Cu NPs). (2025). Vietnam Journal of Catalysis and Adsorption, 14(2), 51-56. https://doi.org/10.62239/jca.2025.025