International Journal of Science , Engineering and Management (IJSEM)

Monthly Journal for Science , Engineering and Management

Volume3,April 2018,

Topic : Synthesis and Characterization of Zinc Oxide Nanoparticles by a solution-free mechanochemical Reaction

Authors:R. Rajkumar || C. Vedhi

Abstract:Zinc oxide plays an important role in current industry due to its special characteristics such as anti-corrosion, antibacteria, has low electrons conductivity and excellent heat resistance. Therefore the objectives of this study, pure zinc oxide nanoparticles (ZnO) were successfully synthesized by a solution-free mechanochemical reaction using zinc acetate dihydrate and oxalic acid as the precursor. The as-prepared precursor was calcined at 500°C temperatures for 2h to form ZnO nanoparticles. The phase and structural transformations were investigated by X-ray diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FT-IR). FT-IR spectra of ZnO nanoparticles showed peaks in the region between 538 and 486cm-1 which corresponds to the stretching vibration of Zn – O band. The XRD studies showed a rather more crystalline behaviour of the nanoparticles and the grain size was calculated using Scherer’s formula and found to be 18nm. XRD spectra revealed that the ZnO crystal has a hexagonal wurtzite structure and the strongest three diffraction peaks at 2θ=31.88°, 34.61° and 36.29° which are in close agreement to the literature. Scanning electron microscopy (SEM) has been used to study the morphological features of the ZnO nanopowder. Result of EDAX (Energy Dispersive X-Ray Spectroscopy) characterization shows that the ZnO nanoparticles has good purity (Zinc content of 49.84% and Oxygen content of 50.16%). The corrosion inhibition efficiency of the nanoparticles were calculated for mild steel in 0.1M HCl and 3.5% NaCl solution using Electrochemical Impedance Spectroscopy (EIS) and Polarization (Tafel) studies..

Keywords: ZnO, Nanostructure, Mechanochemical Synthesis, Morphological Effect, Electrochemical studies.

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DOI: 01.1617/vol5/iss4/pid35081


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Editor-in-Chief

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Dr.Muhammad Ishtiaq,
Mirpur University of
Science & Technology,
Mirpur, Azad Kasmir.

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IMPACT FACTOR: 2.7

ISSN(Online): 2456-1304

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Thomson Reuters ID : q-6288-2016.
ORCiD Research ID : 0000-0001-9540-6799

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ACCEPTANCE RATIO: 25%
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Journal Code : IJSEM
Electronic ISSN : 2456-1304
Impact Factor : 2.7
Frequency : Monthly
Contact : editor@ijsem.org

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