Antibacterial Activity of Ag-Doped TiO2 and Ag-Doped ZnO Nanoparticles
Joint Authors
Nigussie, Gebretinsae Yeabyo
Tesfamariam, Gebrekidan Mebrahtu
Tegegne, Berhanu Menasbo
Weldemichel, Yemane Araya
Gebreab, Tesfakiros Woldu
Gebrehiwot, Desta Gebremedhin
Gebremichel, Gebru Equar
Source
International Journal of Photoenergy
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-02
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
We report in this paper antibacterial activity of Ag-doped TiO2 and Ag-doped ZnO nanoparticles (NPs) under visible light irradiation synthesized by using a sol-gel method.
Structural, morphological, and basic optical properties of these samples were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) spectrum, and UV-Vis reflectance.
Room temperature X-ray diffraction analysis revealed that Ag-doped TiO2 has both rutile and anatase phases, but TiO2 NPs only have the anatase phase.
In both ZnO and Ag-doped ZnO NPs, the hexagonal wurtzite structure was observed.
The morphologies of TiO2 and ZnO were influenced by doping with Ag, as shown from the SEM images.
EDX confirms that the samples are composed of Zn, Ti, Ag, and O elements.
UV-Vis reflectance results show decreased band gap energy of Ag-doped TiO2 and Ag-doped ZnO NPs in comparison to that of TiO2 and ZnO.
Pathogenic bacteria, such as Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli, were used to assess the antibacterial activity of the synthesized materials.
The reduction in the viability of all the three bacteria to zero using Ag-doped ZnO occurred at 60 μg/mL of culture, while Ag-doped TiO2 showed zero viability at 80 μg/mL.
Doping of Ag on ZnO and TiO2 plays a vital role in the increased antibacterial activity performance.
American Psychological Association (APA)
Nigussie, Gebretinsae Yeabyo& Tesfamariam, Gebrekidan Mebrahtu& Tegegne, Berhanu Menasbo& Weldemichel, Yemane Araya& Gebreab, Tesfakiros Woldu& Gebrehiwot, Desta Gebremedhin…[et al.]. 2018. Antibacterial Activity of Ag-Doped TiO2 and Ag-Doped ZnO Nanoparticles. International Journal of Photoenergy،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1174212
Modern Language Association (MLA)
Nigussie, Gebretinsae Yeabyo…[et al.]. Antibacterial Activity of Ag-Doped TiO2 and Ag-Doped ZnO Nanoparticles. International Journal of Photoenergy No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1174212
American Medical Association (AMA)
Nigussie, Gebretinsae Yeabyo& Tesfamariam, Gebrekidan Mebrahtu& Tegegne, Berhanu Menasbo& Weldemichel, Yemane Araya& Gebreab, Tesfakiros Woldu& Gebrehiwot, Desta Gebremedhin…[et al.]. Antibacterial Activity of Ag-Doped TiO2 and Ag-Doped ZnO Nanoparticles. International Journal of Photoenergy. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1174212
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1174212