Structural, optical, photo catalytic and antibacterial activity of ZnO and Co doped ZnO nanoparticles

A systematic investigation on the structural, optical, photo catalytic and antimicrobial properties of pure and cobalt doped ZnO nanoparticles synthesized by Co-precipitation method is presented. X-ray diffraction analysis of these samples showed the formation of phase pure nanoparticles with wurtzi...

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Bibliographic Details
Published in:Materials letters 2011-06, Vol.65 (12), p.1797-1800
Main Authors: Nair, Manjula G., Nirmala, M., Rekha, K., Anukaliani, A.
Format: Article
Language:English
Subjects:
absorbance
Antibacterial
antibacterial properties
cobalt
Doping
methylene blue
Nanoparticles
Photo catalysis
X-ray diffraction
X-ray techniques
zinc oxide
ZnO
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Summary:A systematic investigation on the structural, optical, photo catalytic and antimicrobial properties of pure and cobalt doped ZnO nanoparticles synthesized by Co-precipitation method is presented. X-ray diffraction analysis of these samples showed the formation of phase pure nanoparticles with wurtzite ZnO structure. Optical studies showed a blue shift in the absorbance spectrum with increasing the doping concentration. The Methylene Blue (MB) decomposition rate of the synthesized pure ZnO and cobalt doped ZnO nanoparticles were studied under the UV region. In the UV region, synthesized pure ZnO and cobalt doped ZnO decomposed Methylene Blue (MB). However, the MB decomposition rate obtained using pure ZnO was much higher than that by doped ZnO. The antibacterial property test was carried out via disk diffusion method, and the result indicated antibacterial activity of the prepared samples.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2011.03.079