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28 Nov 2005

Volume 87, Issue 22, Articles (22xxxx)

Issue Cover Spotlight Figure

Appl. Phys. Lett. 87, 221108 (2005); http://dx.doi.org/10.1063/1.2137458 (3 pages)

V. Barna, S. Ferjani, A. De Luca, R. Caputo, N. Scaramuzza, C. Versace, and G. Strangi
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Photocatalyst activation in a pulsed low pressure discharge

A. Rousseau, O. Guaitella, L. Gatilova, F. Thevenet, C. Guillard, J. Röpcke, and G. D. Stancu

Appl. Phys. Lett. 87, 221501 (2005); http://dx.doi.org/10.1063/1.2136415 (3 pages) | Cited 10 times

Online Publication Date: 22 November 2005

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The effect of combining plasma and photocatalyst for Volatile Organic Compounds (VOC) removal was investigated in a pulsed low-pressure dc discharge. The photocatalyst was TiO2 while the VOC was acetylene (1000 ppm) diluted in dry air. The temporal evolution of C2H2 concentration was measured by Tunable Diode Laser Absorption Spectroscopy (TDLAS) in the mid-infrared region during the plasma pulse (one second). The contribution of external ultraviolet radiation and plasma exposure were quantified, both with and without a photocatalyst. The synergetic effect was clearly demonstrated.
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82.50.Hp Processes caused by visible and UV light
82.65.+r Surface and interface chemistry; heterogeneous catalysis at surfaces
82.33.Xj Plasma reactions (including flowing afterglow and electric discharges)
82.80.Jp Activation analysis and other radiochemical methods
52.77.-j Plasma applications
52.80.-s Electric discharges
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