Citation: Wei Rong ZHAO, Xin Hua XU, Hui Xiang SHI, Da Hui WANG. Degradation Mechanism of Cationic Red X-GRL by Ozonation[J]. Chinese Chemical Letters, ;2003, 14(12): 1309-1312. shu

Degradation Mechanism of Cationic Red X-GRL by Ozonation

Department of Environmental Engineering, Zhejiang University, Hangzhou 310027

Received Date: 13 December 2002

The degradation mechanism of Cationic Red X-GRL was investigated when the intermediates, the nitrate ion and the pH were analyzed in the ozonation. The degradation of the Cationic Red X-GRL includes the de-auxochrome stage, the decolour stage, and the decomposition of fragment stage. During the degradation process, among the six nitrogen atoms of Cationic Red X-GRL, one is transferred into a nitrate ion, one becomes the form of an amine compound, and the rest four are transformed into two molecules of nitrogen. In the course of the ozonation of Cationic Red X-GRL, the direct attack of ozone is the main decolour effect.
- Ozonation,
- cationic Red X-GRL,
- mechanism,
- intermediates,
- dye,
- decolourization
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