有機フッ素化合物の気液界面吸着量とプラズマによる分解速度の関係

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: 2012/11/01

タイトル(英語): Relationship between Reaction Rate of Perfluorocarboxylic Acids Decomposition at the Interface of Plasma-Liquid and Adsorbed Amount

著者名: 松谷　有里子（東京工業大学 電気電子工学専攻），竹内　希（東京工業大学 電気電子工学専攻），安岡　康一（東京工業大学 電気電子工学専攻）

著者名(英語): Yuriko Matsuya (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology), Nozomi Takeuchi (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology), Koichi Yasuoka (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology)

キーワード: 界面活性剤，吸着，PFOA，プラズマ　　surfactant，adsorption，PFOA，plasma

要約(英語): Perfluorooctanoic acid (PFOA: C7F15COOH) in water has been decomposed effectively by plasmas generated at a gas-liquid interface. During the decomposition of PFOA, perfluorocarboxylic acids (PFCAs: CnF2n+1COOH) with shorter carbon chains (n = 1-6) are generated as by-products. Since these PFCAs are surfactant, they adsorb to the gas-liquid interface and show high surface concentration. This study investigated the relationship between the adsorbed amount of the PFCAs and the rate of decomposition by a dc plasma. The adsorbed amount of the PFCAs at the gas-liquid interface increased as the length of the carbon chains increased, resulting in a higher rate of decomposition. However, the reaction rate reached saturation with a certain adsorption amount depending on the discharge current.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.132 No.11 （2012） 特集：放電現象・新素材とその応用技術

本誌掲載ページ: 1027-1032 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/132/11/132_1027/_article/-char/ja/