DEGRADATION OF ORGANIC POLLUTANT AND THE CORROSION BEHAVIOR OF STAINLESS ELECTRODE WITH LOW-TEMPERATURE PLASMA DISCHARGE

被引：0

作者：

Liu, Ya-Na ^{[1
]}

Si, An-Heng ^{[2
]}

Zhu, Shu-Fa ^{[1
]}

Zhou, Ming ^{[1
]}

机构：

[1] Henan Univ Sci & Technol, Dept Chem & Pharmaceut, Luoyang 471023, Peoples R China

[2] Henan Univ Sci & Technol, Henan Engn Res Ctr Wear Mat, Luoyang 471023, Peoples R China

来源：

FRESENIUS ENVIRONMENTAL BULLETIN | 2016年 / 25卷 / 06期

基金：

中国国家自然科学基金;

关键词：

low temperature plasma; gliding arc; degradation efficiency; the corrosion of electrodes; GLIDING ARC-DISCHARGE; ACID ORANGE 7; AQUEOUS-SOLUTION; HYDROGEN-PEROXIDE; WASTE-WATER; DECOLORIZATION; PATHWAYS; TIO2; OXIDATION; SALINITY;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The effects of initial solution pH, electrical conductivity and free radical scavenger on degradation rate of Acid Orange 7(AO7) were investigated by gliding arc discharge plasma. The products formed during the discharge process of different carrier gas were analyzed by gas chromatography-mass spectrometry (GC-MS) method. The corrosion behavior of electrode was observed by scanning electron microscope (SEM) and Energy Dispersive Spectrometer (EDX). The results showed that: The removal rate of AO7 was higher slightly under acidic or alkaline condition than that under neutral condition, and the solution pH dropped with the time. The effects of conductivity and n-butanol on AO7 removal were not distinct and the conductivity degrade solution increased. The corrosion of electrodes concentrated mainly in non-equilibrium plasma zone, and iron atoms occurred selective dissolution.

引用

页码：1867 / 1876

页数：10

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