에어로졸 반응기에서 산화아연 입자의 응집 성장
The growth of zinc oxide particles by coagulation in aerosol reactor
- 한국입자에어로졸학회
- Particle and aerosol research
- Vol.4 No.2
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2008.0169 - 75 (7 pages)
- 0
Nanosize ZnO particles were prepared by oxidation of zinc vapor and the particle growth was modeled by a coagulation model by assuming that the characteristic time for reaction was much shorter than coagulation time and residence time (${\tau}_{reaction}{\ll}{\tau}_{coagulation}{\ll}{\tau}_{residence}$). Experimental measurement of zinc oxide particles diameter was consistent with the predicted result from the coagulation model. For practical purpose of predicting zinc oxide size in areosol reactor, the constant kernel solution is concluded to be sufficient, Uniqueness of nano-scale property of zinc oxide was confirmed by the higher photocatalytic activity of zinc oxide than nanosize titania particles.
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