論文

2008年10月

Decomposition of Dye in Water Solution by Pulsed Power Discharge in a Water Droplet Spray

IEEE TRANSACTIONS ON PLASMA SCIENCE
  • Yasushi Minamitani
  • ,
  • Satoshi Shoji
  • ,
  • Yoshihiro Ohba
  • ,
  • Yoshio Higashiyama

36
5
開始ページ
2586
終了ページ
2591
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1109/TPS.2008.2004234
出版者・発行元
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

A method for decomposing dye by spraying water solution of dye into nonequilibrium plasma in gas phase was investigated using a pulsed-corona discharge reactor. The corona reactor consists of a discharge wire and a cylindrical electrode. The water solution of indigo carmine with a concentration of 20 mg/L was sprayed into the reactor from a showerhead. The sprayed water solution was circulated into the reactor. The dependence of the discharging power injected into the reactor on the decomposition rates of chromogenic and unsaturated bonds in indigo carmine was investigated. Indigo blue was decolored by 1-min circulation with the discharging power of 8.6 W. The nuclear magnetic resonance spectrometry showed that indigo carmine was decomposed completely by 60-min treatment. The chromogenic and unsaturated bonds were almost decomposed at 9 and 360 J/mg, respectively. As the discharging power increased, the decomposition rates of both bonds in indigo carmine increased. The decomposition rates of the chromogenic bond showed equal values in equal discharging power regardless of the difference of discharge repetition rate and charging voltage of the capacitor. In contrast, the higher repetitive pulses were more effective for the decomposition of the unsaturated bond rather than the magnitude of charging voltage in equal discharging power.

Web of Science ® 被引用回数 : 50

リンク情報
DOI
https://doi.org/10.1109/TPS.2008.2004234
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000261363400015&DestApp=WOS_CPL

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