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Morpho-Structural and Chemical Composition Properties of PVP-Capped ZnO Nanoparticles Synthesized via a Simple-Polyol Method
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Morpho-Structural and Chemical Composition Properties of PVP-Capped ZnO Nanoparticles Synthesized via a Simple-Polyol Method

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Abstract:

In this work, we report on the processing of PVP-capped ZnO nanoparticles employing a simple-polyol method, varying only the molar concentration (0.01 and 0.1 M) of Zn(CH3COO)2•2H2O used as zinc precursor. Synthesis is performed using ethylene glycol (EG) as solvent and polyvinylpyrrolidone (PVP) as capping agent. Physico-chemical characteristics of the as-synthesized particles were studied by X-Ray Diffraction (XRD), Fourier Transform Infrared (FT-IR) spectroscopy, Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS). SEM micrographs revealed formation of quasi-spherical secondary particles formed by aggregation of primary nanosized subunits crystallized from 0.01 M precursor. When precursor with a higher concentration is used, no aggregation occurs and only tiny primary particles in the nanosized range are obtained. XRD confirmed that ZnO nanoparticles have the hexagonal wurtzite-type structure. SEM, EDS and FT-IR showed that applied route produced ZnO nanoparticles with functionalized surface. Presented results imply clear dependence of the particles morphology and size from precursor concentration which could be used for rapid, continuous, single-step preparation of PVP-capped ZnO nanoparticles tailored in accordance to application demands.

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Periodical:

Solid State Phenomena (Volume 286)

Pages:

15-22

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.286.15

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Online since:

January 2019

Authors:

G. Flores-Carrasco*, J.R. Mora, R. Ramírez, Carlos Bueno, Salvador Alcántara-Iniesta, B.S. Soto, María Eugenia Rabanal

Keywords:

Equiaxial-Spherical Shape, Quasi-Spherical Shape, Simple-Polyol Method, ZnO Nanoparticles

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* - Corresponding Author

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