A new approach to synthesize ZnO tetrapod-like nanoparticles with DC thermal plasma technique

The feasibility of fabricating the tetrapod-like zinc oxide (TZ) nanoparticles with a DC thermal plasma reactor was demonstrated in the present study. Advantages of this process include the low cost and high yield rate (0.8–1.0 kg/h) in producing high TZ content mixtures (with small portion of rod-l...

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Bibliographic Details
Published in:Journal of crystal growth 2009-02, Vol.311 (5), p.1378-1384
Main Authors: Lin, Hsiu-Fen, Liao, Shih-Chieh, Hu, Chen-Ti
Format: Article
Language:English
Subjects:
A1. DC plasma
A1. Photodecomposition
A1. Photostability
B1. Tetrapod-like ZnO nanoparticles
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Nanoscale materials and structures: fabrication and characterization
Other topics in nanoscale materials and structures
Physics
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Summary:The feasibility of fabricating the tetrapod-like zinc oxide (TZ) nanoparticles with a DC thermal plasma reactor was demonstrated in the present study. Advantages of this process include the low cost and high yield rate (0.8–1.0 kg/h) in producing high TZ content mixtures (with small portion of rod-like zinc oxide (RZ) and plate-like zinc oxide (PZ) nanoparticles) from commercial metal zinc powders. ZnO nanopowders with high TZ content could be employed as the starting material for photocatalytic filters. The ratio of TZ to RZ and PZ in the products was observed to be strongly influenced by the plasma power and the plasma gas flow rate. The optical spectrum, photostability and anti-microbial property of the as-grown and annealed TZ mixtures were examined and compared in this study.
ISSN:0022-0248
1873-5002
DOI:10.1016/j.jcrysgro.2008.12.033