Abstract
Objective: To biosynthesize zinc oxide nanoparticles by using parthenium hysterophorous plant extract as a reducing agent and its characterization by spectroscopic techniques.Methods: A novel method was developed to prepare zinc oxide nanoparticles by using zinc nitrate as a precursor and biosynthesis of zinc oxide nanoparticles was mediated by parthenium hysterophorous plant extract without the aid of external energy (high pressure and temperature). This new method involves simple techniques such as centrifugation, filtration, and stirring. Zinc oxide nanoparticles formation was confirmed by analytical techniques such as UV-Visible spectroscopy, powder X-ray diffraction (XRD), Raman spectroscopy and by scanning electron microscopy (SEM) analysis.Results: Zinc oxide nanoparticles were synthesized by using parthenium hysterophorous plant extract as a reducing agent. The XRD measurement showed that zinc oxide nanoparticles possess a typical hexagonal structure and the crystallite size of the synthesized zinc oxide nanoparticles was found to be 32 nm calculated by scherrer’s formula. The SEM images show agglomeration of zinc oxide nanoparticles that are spherical clusters. The maximum absorbance (380 nm) of UV-Visible spectroscopy further confirmed synthesized nanoparticles are zinc oxide. The Raman spectra show both E2 mode and E1 mode, which indicates that the prepared zinc oxide nanoparticles possess crystalline nature with hexagonal wurtzite structure.Conclusion: A method was established to prepare zinc oxide nanoparticles with parthenium hysterophorous plant extract which is a novel approach without the aid of external energy (high pressure and temperature), and formation of zinc oxide nanoparticles was confirmed by spectroscopic techniques. This method can be used in pharmaceutical industry for the synthesis of an antimicrobial agent.
Highlights
Zinc oxide has attracted much attention due to exceptional electronic and optical properties for various technological applications, because of its wide band gap (3.2-3.7 eV) [1]
Based on the above facts, Parthenium hysterophorus plant was selected with zinc oxide metal particle for green synthesis of zinc oxide nanoparticles
The objective of the study was to establish an easy method for biosynthesis of zinc oxide nanoparticles by using parthenium hysterophorus plant extract and its characterization by spectroscopic techniques
Summary
Zinc oxide has attracted much attention due to exceptional electronic and optical properties for various technological applications, because of its wide band gap (3.2-3.7 eV) [1]. They have remarkable potential application in the field of medicine like biological activities such as antimicrobial, antioxidant, etc. Parthenium hysterophorous plant extract and zinc oxide both have antimicrobial properties. Based on the above facts, Parthenium hysterophorus plant was selected with zinc oxide metal particle for green synthesis of zinc oxide nanoparticles. The objective of the study was to establish an easy method for biosynthesis of zinc oxide nanoparticles by using parthenium hysterophorus plant extract and its characterization by spectroscopic techniques
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