INFLUENCE OF REACTION CONDITIONS ON MORPHOLOGY OF ZINC OXIDE MICRO- AND NANOPARTICLES

1 HOUDEK Jakub
Co-authors:
2 VLCEK Miroslav 3 ZELENKA Jiri
Institutions:
1 University of Pardubice, Faculty of Chemical Technology, Department of General and Inorganic Chemistry, Pardubice, Czech Republic, jakub.houdek1@student.upce.cz
2 University of Pardubice, Faculty of Chemical Technology, Center of Materials and Nanotechnologies, Pardubice, Czech Republic, miroslav.vlcek@upce.cz
3 Toseda, s.r.o., U Panasonicu 376, 530 06 Stare Civice, Czech Republic, jiri.zelenka@toseda.cz
Conference:
9th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 18th - 20th 2017
Proceedings:
Proceedings 9th International Conference on Nanomaterials - Research & Application
Pages:
771-775
ISBN:
978-80-87294-81-9
ISSN:
2694-930X
Published:
8th March 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
14 views / 5 downloads
Abstract

Zinc oxide is multifunctional material used for decades in industrial scale due to its unique physical properties. By appropriately chosen morphology of particles, we can get additional value from this “traditional” material. However, for optimal results, it is necessary to manage synthesis of different morphology. Here we report fast and economical method of ZnO synthesis by precipitation from aqueous solutions of zinc acetate by sodium hydroxide. We have studied, how concentration ratio R = [NaOH] / [Zn2+] and solution addition order can affect product morphology and composition. By this synthetic method we can selectively prepare different particle shapes (spheres, urchins, petals, rods) of pure ZnO with yield exceeding 75 %. By reverse addition of reactants, finely dispersed nanoparticles can be obtained by elimination of growth step during the synthesis. For product characterization XRD, SEM, TGA and Raman spectroscopy were used.

Keywords: Zinc oxide, nanoparticles, morphology, synthesis, precipitation
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