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Sensors 2012, 12(11), 14525-14536; doi:10.3390/s121114525
Article

Study on Decomposition of Indoor Air Contaminants by Pulsed Atmospheric Microplasma

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Received: 7 September 2012; in revised form: 19 October 2012 / Accepted: 22 October 2012 / Published: 29 October 2012
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Japan 2012)
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Abstract: Decomposition of formaldehyde (HCHO) by a microplasma reactor in order to improve Indoor Air Quality (IAQ) was achieved. HCHO was removed from air using one pass through reactor treatment (5 L/min). From an initial concentration of HCHO of 0.7 ppm about 96% was removed in one pass treatment using a discharge power of 0.3 W provided by a high voltage amplifier and a Marx Generator with MOSFET switches as pulsed power supplies. Moreover microplasma driven by the Marx Generator did not generate NOx as detected by a chemiluminescence NOx analyzer. In the case of large volume treatment the removal ratio of HCHO (initial concentration: 0.5 ppm) after 60 minutes was 51% at 1.2 kV when using HV amplifier considering also a 41% natural decay ratio of HCHO. The removal ratio was 54% at 1.2 kV when a Marx Generator energized the electrodes with a 44% natural decay ratio after 60 minutes of treatment.
Keywords: microplasma; dielectric barrier discharge; pulsed power; air treatment microplasma; dielectric barrier discharge; pulsed power; air treatment
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Shimizu, K.; Kuwabara, T.; Blajan, M. Study on Decomposition of Indoor Air Contaminants by Pulsed Atmospheric Microplasma. Sensors 2012, 12, 14525-14536.

AMA Style

Shimizu K, Kuwabara T, Blajan M. Study on Decomposition of Indoor Air Contaminants by Pulsed Atmospheric Microplasma. Sensors. 2012; 12(11):14525-14536.

Chicago/Turabian Style

Shimizu, Kazuo; Kuwabara, Tomoya; Blajan, Marius. 2012. "Study on Decomposition of Indoor Air Contaminants by Pulsed Atmospheric Microplasma." Sensors 12, no. 11: 14525-14536.



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