ARCHIVES
VOL. 10, ISSUE 1 (2026)
Study of photocatalytic, and antioxidant activities of biogenic Cu nanoparticles using Alternanthera pungens leaf aqueous extract
Authors
Ch Sudhakar, G Veeranna, Md Moulana Kareem
Abstract
This study describes the green synthesis of copper
nanoparticles (Cu NPs) using an aqueous extract of Alternanthera pungens.
Plant-based nanoparticle synthesis has gained significant attention due to its
eco-friendly, simple, and cost-effective nature, avoiding the use of hazardous
chemicals and harsh conditions. Phytochemicals such as flavonoids, terpenoids,
and carbohydrates present in the plant extract act as reducing and stabilizing
agents during nanoparticle formation. The development of Cu NPs was established
by UV–Visible spectroscopy, showing a surface plasmon resonance signal around
580 nm. XRD analysis revealed a face-centred cubic crystalline structure, while
FTIR and EDX analyses confirmed the role of phytochemicals in nanoparticle
stabilization. A zeta potential value of –29.1 mV indicated good colloidal
stability. TEM analysis showed spherical nanoparticles with sizes ranging from
3–12 nm. The synthesized Cu NPs exhibited significant antioxidant activity,
efficient photocatalytic degradation of Congo red dye, and notable
antibacterial activity, particularly against Gram-negative bacteria.
Download
Pages:71-75
How to cite this article:
Ch Sudhakar, G Veeranna, Md Moulana Kareem "Study of photocatalytic, and antioxidant activities of biogenic Cu nanoparticles using <i>Alternanthera pungens</i> leaf aqueous extract". International Journal of Chemical Science, Vol 10, Issue 1, 2026, Pages 71-75
Download Author Certificate
Please enter the email address corresponding to this article submission to download your certificate.