Role of Ag and tannin modification on photocatalytic and antibacterial properties of ZnO nanoplates

Year 2018, Volume: 22 Issue: 6, 1727 - 1735, 01.12.2018

Nuray Güy , Soner Çakar , Keziban Atacan

https://doi.org/10.16984/saufenbilder.373735

Abstract

This study represents the removal of malachite
green (MG) from aqueous solution using ZnO,
Ag/ZnO, ZnO/tannin and Ag/ZnO/tannin. The products were synthesized by microwave-hydrothermal and
borohydride reduction method and they were characterized by optical,
structural, morphological, antibacterial and photocatalytic features.  Additionally, the antibacterial studies of the
prepared products were examined against Escherichia coli (E. Coli), Staphylococcus aureus (S. aureus)
and Candida by the well diffusion method. Among the products, Ag/ZnO exhibits the highest photocatalytic activity.
The photodegradation efficiency of 98.68% was recorded for Ag/ZnO after 30 min.
Moreover, improved antibacterial activity of Ag/ZnO/tannin against E. Coli, S. aureus and Candida is observed. And it was found that Ag/ZnO/tannin had
more excellent antibacterial activity compared to others. It has been found
that the prepared products can be used in potential applications such decompose
of dye pollutants and destruction of pathogen bacteria and fungi.

Keywords

Antibacterial properties, photocatalyst, Ag/ZnO, tannin

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