Production characteristics of reactive oxygen/nitrogen species in water using atmospheric pressure discharge plasmas

被引：26

作者：

Takahashi, Kazuhiro ^{[1
]}

Satoh, Kohki ^{[1
]}

Itoh, Hidenori ^{[1
]}

Kawaguchi, Hideki ^{[1
]}

Timoshkin, Igor ^{[2
]}

Given, Martin ^{[2
]}

MacGregor, Scott ^{[2
]}

机构：

[1] Muroran Inst Technol, Muroran, Hokkaido 0508585, Japan

[2] Univ Strathclyde, Glasgow G1 1XW, Lanark, Scotland

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2016年 / 55卷 / 07期

关键词：

PHOTOCHEMICAL DATA; CHEMISTRY; NITROGEN; INACTIVATION; PHOTOLYSIS;

D O I：

10.7567/JJAP.55.07LF01

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A pulsed discharge, a DC corona discharge, and a plasma jet are separately generated above a water surface, and reactive oxygen species and reactive nitrogen species (ROS/RNS) in the water are investigated. ROS/RNS in water after the sparging of the off-gas of a packed-bed dielectric barrier discharge (PB-DBD) are also investigated. H2O2, NO2-, and NO3- are detected after plasma exposure and only NO3- after off-gas sparging. Short-lifetime species in plasma are found to play an important role in H2O2 and NO2- production and long-lifetime species in NO3- production. NOx may inhibit H2O2 production through OH consumption to produce HNO2 and HNO3. O-3 does not contribute to ROS/RNS production. The pulsed plasma exposure is found to be effective for the production of H2O2 and NO2-, and the off-gas sparging of the PB-DBD for the production of NO3-. (C) 2016 The Japan Society of Applied Physics

引用

页数：6