ARCHIVES
VOL. 7, ISSUE 1 (2025)
Effect of temperature and time of reaction on green synthesis of silver nanoparticles using Malvaviscus arboreus, their antimicrobial activities
Authors
Anamika Ratan, Ashwani Kumar, Sarvesh Singh
Abstract
Mother nature has long served as a rich source
of medicinal compounds and therapeutic substances. One such plant is Malvaviscus
arboreus (commonly known as sleeping hibiscus), an evergreen shrub native
to India. Green synthesis has emerged as an environmentally friendly
alternative for producing nanoparticles, utilizing biological entities such as
bacteria, algae, fungi, and plants. This approach offers a sustainable route
for nanoparticle fabrication. In this context, higher temperatures were
observed to accelerate the nucleation and formation of silver nanoparticles
(AgNPs), resulting in an increase in the intensity of the absorbance peak. This
suggests a higher yield of nanoparticles at elevated temperatures. The
consistent wavelength of the absorbance peak (around 440-450 nm) indicates that
the AgNPs synthesized under varying conditions maintained a relatively similar
size. However, a slight enhancement in absorbance at higher temperatures could
be attributed to the presence of smaller nanoparticles, as smaller particles
exhibit stronger surface plasmon resonance (SPR). Furthermore, the study
demonstrated a direct correlation between reaction time and AgNP synthesis.
Longer reaction times resulted in increased nanoparticle production, as
evidenced by higher absorbance values. In summary, both temperature and
reaction time significantly influenced the quantity and potentially the size distribution
of the synthesized AgNPs, with higher values leading to more efficient
nanoparticle formation.
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Pages:23-26
How to cite this article:
Anamika Ratan, Ashwani Kumar, Sarvesh Singh "Effect of temperature and time of reaction on green synthesis of silver nanoparticles using <i>Malvaviscus arboreus</i>, their antimicrobial activities". International Journal of Biotechnology and Microbiology, Vol 7, Issue 1, 2025, Pages 23-26
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