Decoloration of aqueous Brilliant Green by using glow discharge electrolysis.
Jinzhang Gao, Jie Yu, Yan Li, Xiaoyan He, Lili Bo, Lumei Pu, Wu Yang, Quanfang Lu, Zhiming Yang
Index: J. Hazard. Mater. 137(1) , 431-6, (2006)
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Abstract
This paper described a plasma degradation of Brilliant Green (BG) by glow discharge electrolysis. Various influencing factors such as the voltage, the distance between cathode and anode were examined. Ultraviolet (UV) absorption spectra, gas chromatogram-mass spectrum (GC-MS), and chemical oxygen demand (COD) were used to monitor the degradation process and to identify the major oxidation intermediates. It was confirmed that benzoic acid, 1,2,3,4,5,6-cyclohexanehexaol, and carboxylic acids (e.g., oxalic acid, succinic acid and hydroxyacetic acid) were produced in the degradation process. The results showed that BG rapidly underwent degradation and eventually mineralized into CO(2) and H(2)O.
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