Green synthesis of ZnO nanoparticles via Agathosma betulina natural extract

This contribution reports on the synthesis and the main physical properties of ZnO nanoparticles synthesized for the first time by a completely green process using Agathosma betulina plant extract as an effective chelating agent. The surface/interface and volume room temperature properties of these...

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Bibliographic Details
Published in:Materials letters 2015-12, Vol.161, p.124-127
Main Authors: Thema, F.T., Manikandan, E., Dhlamini, M.S., Maaza, M.
Format: Article
Language:English
Subjects:
Agathosma betulina’s extract
Diffraction
Extraction plants
Green synthesis
Nanoparticles
Nonlinearity
Pellets
Synthesis
Varistors
Zinc oxide
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Summary:This contribution reports on the synthesis and the main physical properties of ZnO nanoparticles synthesized for the first time by a completely green process using Agathosma betulina plant extract as an effective chelating agent. The surface/interface and volume room temperature properties of these quasi-spherical 15.8nm in size ZnO nanoparticle by transmission electron microscopy, energy dispersive X-Ray Spectroscopy, X-rays diffraction, attenuated total reflection IR and Raman spectroscopy are reported. Likewise, a spark sintered pellet made of such nanoparticles exhibited a significant nonlinear current–voltage exponential response characteristic of a varistor. •1st time synthesis of ZnO nanoparticles by a green process via Agathosma betulina leaves’ extract.•Agathosma betulina leaves natural extract was used as an effective reduction/oxidizing agent.•Pure ZnO nanoparticles were confirmed via HRTEM, EDS, XRD, ATR-FTIR, and Raman.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2015.08.052