細管内スパーク放電照射プラズマ処理水の成分経時変化における細管径依存性

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: 2023/10/02

タイトル(英語): Dependence of Inner Diameter on Change Over Time of Concentrations of Plasma Treated Water by Spark Discharge in Capillary Tube

著者名: 坂東　隆宏（豊橋技術科学大学），高橋　勝之心（豊橋技術科学大学），手島　脩作（豊橋技術科学大学），針谷　達（豊橋技術科学大学），滝川　浩史（豊橋技術科学大学），井出　健太郎（シンフォニアテクノロジー（株）），大石　智明（シンフォニアテクノロジー（株）），爪　光男（シンフォニアテクノロジー（株））

著者名(英語): Takahiro Bando (Toyohashi University of Technology), Katsunoshin Takahashi (Toyohashi University of Technology), Shusaku Teshima (Toyohashi University of Technology), Toru Harigai (Toyohashi University of Technology), Hirofumi Takikawa (Toyohashi University of Technology), Kentaro Ide (Sinfonia Technology Co., Ltd.), Tomoaki Oishi (Sinfonia Technology Co., Ltd.), Mitsuo Tsume (Sinfonia Technology Co., Ltd.)

キーワード: 大気圧プラズマ，スパーク放電，石英細管，プラズマ処理水，硝酸，過酸化水素　　atomistic-pressure plasma，spark discharge，capillary quartz tube，plasma treated water，nitric acid，hydrogen peroxide

要約(英語): In recent years, research on the application of plasma treated water to agriculture or medicine has been actively carried out. For further application of plasma-treated water, it is desirable to understand the reaction process and to prepare plasma-treated water of arbitrary rate and concentration. In this study, the plasma treated water prepared by spark discharges in capillary quartz tubes were investigated. The diameter of the capillary tube was changed from 1.0 mm to 3.5 mm, and the change over time of concentrations of NO2-, NO3-, H2O2, and pH were investigated. It was found that the rate of increase in NO2- was suppressed as the diameter of the capillary tube decreased. As a result, the treatment time at pH = 4.6, the treatment time when NO3- starts to increase, and the treatment time when H2O2 starts to decrease, were increased. The reason for the decrease in the rate of increase in NO2- was considered that the generation of NO2 around the plasma was suppressed as the diameter of the capillary tube decreased, and NO2 was less dissolved in water.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.143 No.10 （2023） 特集：未来社会に向けた先端光応用・視覚技術II

本誌掲載ページ: 329-334 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/143/10/143_329/_article/-char/ja/