Decolorization of Aqueous Acid Red B Solution During the Cathode Process in Abnormal Glow Discharge

Author

Lu, Dilai ; Chen, Jierong ; Gao, Aihua ; Zissis, Georges ; Hu, Shangbin ; Lu, Zhiguo

Author_Institution

Dept. of Environ. Sci. & Eng., Xi´´an Jiaotong Univ., Xi´´an, China

Volume

38

Issue

10

fYear

2010

Firstpage

2854

Lastpage

2859

Abstract

This paper investigated some chemical and physical factors which probably affect the decolorization of aqueous acid red B solution by atmospheric abnormal glow discharge. When the aqueous solution served as the cathode, effective decolorization occurred in the inert gas discharges as well as in the active gas discharges. The hydroxyl radicals were mainly responsible for the decolorization in the solution phase. The gas ionization potential may influence the decolorization effect.

Keywords

cathodes; dyes; free radical reactions; glow discharges; ionisation potential; plasma chemistry; plasma materials processing; wastewater treatment; active gas discharges; aqueous acid red B solution; atmospheric abnormal glow discharge; cathode; decolorization; gas ionization potential; hydroxyl radicals; inert gas discharges; Argon; Cathodes; Discharges; Electric potential; Ions; Nitrogen; Abnormal glow discharge; cathode; decolorization; ionization potential;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2010.2061871

Filename

5551225