SYNTHESIS, CHARACTERIZATION AND ACUTE AQUATIC TOXICITY OF SAMARIUM OXIDE NANOPARTICLES TO FRESHWATER GREEN ALGAE

1 KUZNÍKOVÁ Ľubomíra
Co-authors:
1,2 DĚDKOVÁ Kateřina 1,2 KUPKOVÁ Jana 3 VÁŇA Rostislav 1,2 KUKUTSCHOVÁ Jana
Institutions:
1 Nanotechnology Centre, VŠB – Technical University of Ostrava, Ostrava, Czech Republic, EU, lubomira.kuznikova@vsb.cz
2 Regional Materials Science and Technology Centre, VŠB – Technical University of Ostrava, Ostrava, Czech Republic, EU
3 TESCAN Brno, s.r.o., Brno, Czech Republic, EU
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:
745-751
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 / 2 downloads
Abstract

The article describes the preparation of samarium oxide nanoparticles (nano Sm2O3) via thermal decomposition of a transient complex formed in situ from Sm(NO3)3·6H2O and glycine and its acute aquatic toxicity to Chlorella vulgaris. The resulting nanoparticles were characterized by X-ray powder diffraction analysis, which showed the Sm2O3 nanoparticles to be with the crystallite size of 11 nm. Morphology of the Sm2O3 nanoparticles was examined by scanning and transmission electron microscopy. Electron diffraction observed in transmission electron microscopy corresponds to the results obtained from X-ray diffraction analysis. The elemental composition of the product was confirmed by EDS analysis. Freshwater green algae (C. vulgaris) served as a model organism for evaluation of acute aquatic toxicity. Effective concentration of toxicity EC50 was determined for the concentration of 2.43 gr.l-1,of Sm2O3 nanoparticles in the fresh water green algae strain.

Keywords: thermal decomposition, acute aquatic toxicity, algae Chlorella vulgaris, samarium oxide nanoparticles (nano Sm2O3).
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