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Synthesis and antimicrobial properties of CaCO 3 -nAg and nAg-CaCO 3 nanocomposites
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Abstract
The nanocomposites of nAg-CaCO
3
and CaCO
3
-nAg with different mass content of silver nanoparticles were obtained in a two-stage continuous microwave process. The nanocomposites were characterized by XRD, TEM, UV–vis, and FTIR spectroscopy. The effects of microwave radiation, silver nanoparticles content in the composite and the molar ratio of tannic acid to silver on the size of salt crystallites were studied. The effectiveness of combining silver nanoparticles with CaCO
3
was confirmed to exceed 99%. Depending on the input parameters applied, the size of salt crystals in nAg/CaCO
3
nanocomposites ranged from 25 to 45 nm, while the size of salt crystals in CaCO
3
/nAg nanocomposites ranged from 26 to 41 nm. In addition, some of the compositions were tested for their antimicrobial activity on selected yeast and bacterial microorganisms. The prepared materials present a biocidal effect, which makes them suitable for use in antimicrobial preparations.
Title: Synthesis and antimicrobial properties of CaCO
3
-nAg and nAg-CaCO
3
nanocomposites
Description:
Abstract
The nanocomposites of nAg-CaCO
3
and CaCO
3
-nAg with different mass content of silver nanoparticles were obtained in a two-stage continuous microwave process.
The nanocomposites were characterized by XRD, TEM, UV–vis, and FTIR spectroscopy.
The effects of microwave radiation, silver nanoparticles content in the composite and the molar ratio of tannic acid to silver on the size of salt crystallites were studied.
The effectiveness of combining silver nanoparticles with CaCO
3
was confirmed to exceed 99%.
Depending on the input parameters applied, the size of salt crystals in nAg/CaCO
3
nanocomposites ranged from 25 to 45 nm, while the size of salt crystals in CaCO
3
/nAg nanocomposites ranged from 26 to 41 nm.
In addition, some of the compositions were tested for their antimicrobial activity on selected yeast and bacterial microorganisms.
The prepared materials present a biocidal effect, which makes them suitable for use in antimicrobial preparations.
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