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- Title
Degradation of Azo Dye Acid Orange 7 by Zero Valent Iron Activated with Potassium Persulphate.
- Authors
Muqing Qiu
- Abstract
The zero valent iron has the advantage that the small particle size results in a large specific surface area and great intrinsic reactivity of surface sites. However, the zero valent iron particles tend to either react with surrounding media or agglomerate, resulting in significant loss of reactivity. The synthetic zero valent iron was activated by potassium persulphate. The degradation of azo dye Acid Orange 7 by zero valent iron activated with potassium persulphate was carried out. The effect of several parameters, such as the pH in solution, the reaction time, reaction temperature, the activated zero valent iron amount and the initial concentration of dye on the removal process was investigated. The results showed that the degradation rate of azo dye Acid Orange 7 by the activated zero valent iron was high. The operation parameters had an important effect on the degradation of azo dye Acid Orange 7 in aqueous solution.
- Subjects
AZO dyes; PERSULFATES; POTASSIUM; AQUEOUS solutions; REACTIVITY (Chemistry)
- Publication
Nature Environment & Pollution Technology, 2019, Vol 18, Issue 1, p197
- ISSN
0972-6268
- Publication type
Article