Plasma Interactions with Organic Materials in Liquid through Plasma/Liquid Interface

• Kosuke Takenaka

• Yuichi Setsuhara

Abstract

Plasma interactions with organic materials through the plasma/liquid interface as fundamental processes in plasma medicine have been investigated by degradation of methylene blue (MB) by irradiating with Ar/water mixture plasma. The optical emission spectra of Ar/water mixture plasma show considerable emissions of Ar lines, and the emission of H and OH radicals attributed to dissociation of water (H 2 O) in Ar/water mixture plasma has been confirmed. Variation in the molecular structure of MB in aqueous solution treated with the plasma has been observed by Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). The results obtained from FT-IR and XPS analyses show that the Ar/water plasma exposure enables the degradation of organic materials in solution owing to oxidation by irradiated radicals from plasma through the plasma/liquid interface.

Journal

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 52 (11S), 11NE04-, 2013-11-01

  IOP Publishing

Keywords

• General Physics and Astronomy
• General Engineering

Details

• CRID: 1360566399841637888
• NII Article ID: 210000143115
• DOI: 10.7567/jjap.52.11ne04
• ISSN: 13474065
• ISSN: 00214922
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.52.11NE04
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.52.11NE04/pdf
• Data Source:
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