Decoloration of Methyl Orange by Pulsed Discharge Combined with Photocatalysis TiO2

被引：0
|
作者：
Zhang Li [1 ]
Sun Bing [1 ]
Liu Yongjun [1 ]
机构：
[1] Dalian Maritime Univ, Coll Environm Sci & Engn, Dalian 116028, Peoples R China
来源：
PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE ON ENVIRONMENTAL TECHNOLOGY AND KNOWLEDGE TRANSFER | 2012年
关键词：
pulsed discharge; pinhole; TiO2; decoloration; STREAMER CORONA DISCHARGE; HIGH-VOLTAGE; HYDROXYL RADICALS; GLOW-DISCHARGE; ORGANIC-DYE; AZO-DYE; DEGRADATION; PLASMA; 4-CHLOROPHENOL; REMOVAL;
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：
In the present work, methyl orange was decolorred by pulsed corona discharge combined with TiO2 photocatalysis. The electrode geometry of the pulsed discharge is plate to plate separated by an insulating plate with three pinholes. The corona discharge was developed under the three pinholes. The liquid phase (upper) and gas phase (lower) plasma produced a lot of active species, ultraviolet light, and high-energy electrons which resulted in the decoloration of the methyl orange solution. The effects of the TiO2 concentration, peak voltage, initial solution conductivity, gas bubbling varieties (air, O-2, and N-2), and hydroxyl radical scavenger (sodium carbonate) on decoloration were studied. The results revealed that-the decoloration rate of methyl orange could be increased by adding appropriate amounts of TiO2.
引用
收藏
页码：700 / 705
页数：6
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