Effect of temperature on optical, structural, morphological and antibacterial properties of biosynthesized ZnO nanoparticles
Keywords:
Nanoparticles, Ocimum sanctum, ZnO, SEM, DLS, AntibacterialAbstract
Nanomaterials can be produced by using nontoxic biological compounds that are both eco-friendly and economically viable. Temperature dependent ecological synthesis of ZnO nanoparticles was carried out with leaf extract of Ocimum sanctum. An electron microscope study confirmed that a temperature of 400 oC was optimal for the formation of ZnO nanoparticles generated by biosynthesizing ZnO nanoparticles. The normal crystalline size of biosynthesized ZnO nanoparticles calculated via XRD analysis are found to be 18, 12 and 17 nm for 300 - 500 oC, respectively. The direct optical band gap energy deducted from Tauc approximation range to be 3.32-3.20 eV. In SEM analysis, depending on the temperature of the synthesis conditions, different ZnO morphologies are also found. Functional groups analysis confirmed the incidence of carboxyl and amide groups in the O. sanctum leaf extract. The ZnO nanoparticles analysed at room temperature using photoluminescence, a broad visible band is observed around 382 nm for all samples. Furthermore, this study determines that the synthesized ZnO nanoparticles provide antimicrobial efficacy against clinical strains of Bacillus subtilis and Staphylococcus aureus, as well as against standard strains of Escherichia coli. Several fields, including cosmetics and pharmaceuticals, can benefit from biosynthesized nanoparticles.
Published
How to Cite
Issue
Section
Copyright (c) 2022 G. Kamarajan, D. Benny Anburaj, V. Porkalai, A. Muthuvel, G. Nedunchezhian

This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite
Similar Articles
- A. A. Ibiyemi, G. T. Yusuf, O. Akirinola, M. Orojo, B. Osuporu, J. Lawal, Investigating the magnetic domain structure and photonics characters of Singled Phased hard ferromagnetic Ferrite MFe3O4 (M= Co2+, Zn2+, Cd2+) Compounds , Journal of the Nigerian Society of Physical Sciences: Volume 6, Issue 1, February 2024
- Pushap Lata Sharma, Mohini Kapalta, Ashok Kumar, Deepak Bains, Sumit Gupta, Pankaj Thakur, Electrohydro dynamics convection in dielectric rotating Oldroydian nanofluid in porous medium , Journal of the Nigerian Society of Physical Sciences: Volume 5, Issue 2, May 2023
- Monika Saini, Ashish Kumar, Fuzzy semi-Markovian stochastic model for single-unit system with repairman arrival delay under Lindley lifetime distribution using bell-shaped membership function , Journal of the Nigerian Society of Physical Sciences: Volume 8, Issue 3, August 2026
- O. J. Olusesi, K. J. Oyewumi, W. A. Yahya, The statistical ensemble of q-deformed hyperbolic modified P\"oschl-Teller potential for certain diatomic molecules through Euler-Maclaurin approach , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 2, May 2025
- Afis Saliu, Semiu Oladipupo Oladejo, On Lemniscate of Bernoulli of q-Janowski type , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 4, November 2022
- Friday Obarhua, Oluwasemire John Adegboro, An Order Four Continuous Numerical Method for Solving General Second Order Ordinary Differential Equations , Journal of the Nigerian Society of Physical Sciences: Volume 3, Issue 1, February 2021
- E. I. Akinola, R. A. Oderinu, S. Alao, O. E. Opaleye, An Integral Transform-Weighted Residual Method for Solving Second Order Linear Boundary Value Differential Equations with Semi-Infinite Domain , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 4, November 2022
- Akila Dabara Kayit, Mohd Tahir Ismail, Novel way to predict stock movements using multiple models and comprehensive analysis: leveraging voting meta-ensemble techniques , Journal of the Nigerian Society of Physical Sciences: Volume 6, Issue 3, August 2024
- Sulaiman Awwal Akinwunmi, David Opeoluwa Oyewola, Spectral convolution of star-like transformation semigroups for modeling telecommunication signal strength and user experience in Gombe state, Nigeria , Journal of the Nigerian Society of Physical Sciences: Volume 8, Issue 2, May 2026
- Sulaiman Awwal AKINWUNMI, Garba Risqot IBRAHIM, Adenike Olusola ADENIJI, David Opeoluwa OYEWOLA, On the multiplicity order of spinnable star-like transformation semigroup Tw*n , Journal of the Nigerian Society of Physical Sciences: Volume 6, Issue 1, February 2024
You may also start an advanced similarity search for this article.

