プラズマと液体の界面現象

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2012/01/01

タイトル(英語): Phenomena on Plasma-Liquid Interface

著者名: 竹内　希（東京工業大学大学院理工学研究科電気電子工学専攻）

著者名(英語): Nozomi Takeuchi (Dept. Electrical and Electronic Eng., Tokyo Institute of Technology)

キーワード: プラズマ-液体界面，界面反応，OHラジカル，界面活性剤　　plasma-liquid interface，interfacial reaction，OH radical，surfactant

要約(英語): Recent researches on plasma-liquid interface are introduced. One is about plasma-water interaction at the interface of pulsed dielectric-barrier plasma in gas-liquid two-phase flow for water treatment. Acetic acid in water is decomposed as a persistent material. Numerical calculation indicates that plasma-water interaction which is O-radical-induced generation of liquid-phase-OH radical occurs. The other reports highly-concentrated adsorption of a surfactant at plasma-water interface, and an interfacial reaction decomposing the surfactant. Perfluorooctane sulfonic acid is an extremely persistent surfactant, but can be decomposed by plasma attached to the solution. The decomposing reaction occurs at the plasma-water interface. Estimation of the amount of PFOS adsorbing to the plasma-water interface shows much higher mole fraction of PFOS than that in bulk water. Thus, the plasma can effectively react with PFOS at the water surface and exhibits high energy efficiency.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.132 No.1 （2012） 特集：2012年研究開発の動向と最前線

本誌掲載ページ: 2023/05/08 p

原稿種別: 解説／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/132/1/132_1_5/_article/-char/ja/