GREEN SYNTHESIZED SILVER NANOPARTICLES DERIVED FROM AN EXTRACT OF THE BETULA PENDULA TREE

1 HRADILOVÁ Šárka
Co-authors:
2 PANÁČEK Aleš 2 ZBOŘIL Radek
Institutions:
1 RCPTM, Faculty of Science, Palacky University, 17. listopadu 12, Olomouc 779 00, Czech Republic, sarka.hradilova@upol.cz sarka.hradilova@upol.cz
2 RCPTM, Department of Physical Chemistry, Faculty of Science, Palacky University, 17. listopadu 12, Olomouc 779 00, Czech Republic
Conference:
10th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 17th - 19th 2018
Proceedings:
Proceedings 10th International Conference on Nanomaterials - Research & Application
Pages:
523-529
ISBN:
978-80-87294-89-5
ISSN:
2694-930X
Published:
28th February 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
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Abstract

This is a first report for the synthesis of silver nanoparticles using branch extract of Betula pendula - one of the most common trees in Europe, China and southwest Asia. The present study is dealing with ecofriendly green synthesis of silver nanoparticles (AgNPs) using the aqueous extract of branches from B. pendula tree. The reaction mixture contained only the extract (10 or 25% of the total volume of the reaction mixture) from the branches and the source of silver ion without the addition of any catalyst, surfactant or template. The bio-synthesis was carried out at room temperature for 24 hours. The described method is perfectly green, simple, coast-effective and eco-friendly. Reducing substance from birch branches are purely natural and can be obtained simply without damaging the tree. The AgNPs were characterized by UV-vis., DLS and TEM. Surface plasmon spectra for AgNPs are centered at 430-436 nm. The synthesized AgNPs were found to be spherical in shape with size 22.7 ± 6.9 nm and 25.2 ± 7.5 nm, respectively for a reaction mixture containing 10 or 25% of the extract. Biomolecules from branches acted as a reducing agent as well as stabilizer. Common green synthesis uses "green" parts of plants, especially leaves or fruits. It should be noted that in countries with alternating seasons, leaves are not available throughout the year. Branches, on the other hand, are available all year round and their composition is constant regardless of the season.

Keywords: Green synthesis, Betula pendula, silver nanoparticles, eco-friendly
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