Influence of temperature and concentration on biosynthesis and characterization of zinc oxide nanoparticles using cherry extract

Faezeh Malek Mohammadi,Nahid Ghasemi

doi:10.1007/s40097-018-0257-6

Faezeh Malek Mohammadi, Nahid Ghasemi

Open Access

https://doi.org/10.1007/s40097-018-0257-6

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Abstract

Due to distinguishing characteristics of nanoparticles (NPs) in terms of size, shape, chemical composition, transmittal and different applications, nanotechnology is considered as an interesting domain of research. Application of metallic NPs is important because of the diminution of dimensions and thus the unique thermal, optical and electronic properties. This research attempts to explore the synthesis of zinc oxide NPs. Zinc oxide NPs have been synthesized using cherry extract under different pH, temperature and concentration and then optimum conditions for the synthesis of them were determined. For further investigations, UV–Vis spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier infrared transformation spectroscopy (FTIR) were used. The solution containing zinc oxide NPs showed a major absorbance of 378 nm which confirmed the synthesis of zinc oxide NPs, and spherical morphology of NPs was observed in SEM images. Zinc oxide NP sizes were 6.5 and 20.18 nm which are obtained by UV–Vis spectra and XRD spectrum, respectively. Also, based on the FTIR spectra of the extract obtained before and after the synthesis, the existence of the reducing agents in herbal extract was confirmed. According to this study, the biological synthesis of NPs using plant extracts can be considered as a cost-effective and efficient method of biological synthesis of NPs and it could be an appropriate replacement to typical chemical methods for the synthesis of NPs.

Highlights

Throughout the history of humanity, since the time of Greek, scientists believed that the material can be divided into small pieces so far as the smallest part could not become smaller, and the foundation of the material is based on these particles
With increase of pH from 4 to 8, surface plasmon resonance (SPR) absorption peak shifted to larger wavelength indicating the formation of larger size ZnO nanoparticles and the red shift; with increase of pH from 8 to 10, SPR absorption peak shifted to the blue shift that will be due to smaller size of ZnO nanoparticles [42]
The obtained results from UV–Vis spectrophotometry, scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier infrared transformation spectroscopy (FTIR) analysis confirmed the efficiency of cherry extract in the synthesis of high purity, crystalline zinc oxide nanoparticles

Summary

Introduction

Throughout the history of humanity, since the time of Greek, scientists believed that the material can be divided into small pieces so far as the smallest part could not become smaller, and the foundation of the material is based on these particles. Perhaps the Greek philosopher, Democritus, was the father of nanotechnology, since about 400 BC. He was the first person which used the term of “atom” to describe the particles that makes matter, which in Greek means indivisible. The starting point and primary development of nanotechnology are not exactly clear. Maybe it can be said that the first nanotechnologists were medieval glaziers. Church glasses were made using gold nanometric particles and very

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