Fabrication of Agglomerate-free ZnO Nanoparticles by Electrospraying and Subsequent Two-step Heat Treatment

doi:10.3724/SP.J.1077.2009.00845

Abstract

Abstract: Agglomerate-free ZnO nanoparticles were prepared by electrospraying and subsequent two-step heat treatment, providing a novel way for the fabrication of agglomeratefree oxide nanopowders. Using Zn(CH₃COO)₂·2H₂O ethanol solution added proper polyvinylpyrrolidone as electrosprayed liquid, a cone-jet was successfully formed that produced symmetrical micron droplets. The electrosprayed products were dried then. Agglomerate-free ZnO nanoparticles were derived after annealing the dried electrosprayed products in nitrogen at 600℃ for 1h followed by annealing in air at 400℃ for 1h. Results of SEM and XRD tests demonstrate that the as-prepared ZnO nanoparticles are well developed with a uniform size, and a hexagonal wurtzite structure.

Key words: ZnO, electrospray, nanoparticle

ZHANG Pan,LI Jian-Lin. Fabrication of Agglomerate-free ZnO Nanoparticles by Electrospraying
and Subsequent Two-step Heat Treatment[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2009.00845.

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Fabrication of Agglomerate-free ZnO Nanoparticles by Electrospraying
and Subsequent Two-step Heat Treatment

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