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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(2): 277-285
DOI: https://doi.org/10.20546/ijcmas.2020.902.035


Green Synthesis of Zinc Oxide Nanoparticles using Neem (Azadirachta indica) and Tulasi (Ocimum tenuiflorum) Leaf Extract and their Characterization
Amrutha S. Ajayan* and N. S. Hebsur
Department of Soil Science and Agricultural Chemistry, College of Agriculture, University of Agricultural Sciences, Dharwad, 580005, Karnataka, India,
*Corresponding author
Abstract:

Plant mediated synthesis or green synthesis of nanoparticles is gaining importance due to its simplicity, eco-friendly nature, rapid rate of synthesis, less cost and due to the disadvantages associated with chemical synthesis. The bio-active molecules present in the plant extracts are utilized for the synthesis of zinc oxide nanoparticles from its bulk molecules. A study was carried out to synthesis zinc oxide nanoparticles from neem (Azadirachta indica) and tulasi (Ocimum tenuiflorum) leaf extracts. The preliminary confirmation of synthesized nanoparticles was done by UV-spectroscopy where the absorbance peaks of synthesized zinc oxide nanoparticles were obtained in UV wavelength range (359 and 364 nm for neem and tulasi, respectively). The synthesized particles were characterized for their size and morphology using particle size analyzer and scanning electron microscopy. The average size (diameter) of neem and tulasi synthesized zinc oxide nanoparticles were recorded as 101.6 and 122.4 nm, respectively in particle size analyzer (PSA). In scanning electron microcopy (SEM), ZnO nanoparticles synthesized from neem recorded flakes like or flower like morphology and size ranged from 100-300 nm. For ZnO NPs synthesized from tulasi leaf extract recorded ovoid shape and size ranged from 70-400 nm. Energy dispersive x-ray analysis (EDAX) of green synthesized ZnO nanoparticles was done to determine its purity and chemical composition.


Keywords: Green synthesis, Characterization, Neem, Tulasi, Zinc oxide nanoparticles (ZnO NPs), EDAX, SEM, PSA
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How to cite this article:

Amrutha S. Ajayan and Hebsur. N.S. 2020. Green Synthesis of Zinc Oxide Nanoparticles using Neem (Azadirachta indica) and Tulasi (Ocimum tenuiflorum) Leaf Extract and their Characterization.Int.J.Curr.Microbiol.App.Sci. 9(2): 277-285. doi: https://doi.org/10.20546/ijcmas.2020.902.035