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Citation: XIA Qing-Yu, CHEN Ri-Yao, ZHENG Xi, FANG Yi, CHEN Zhen. Effect of Negative Pulse on Electrogenerated FeO₄^2- and Degradation of Sodium Dodecylbenzene sulfonate by FeO₄^2-[J]. Chinese Journal of Applied Chemistry, ;2005, 22(1): 35-39. shu

Effect of Negative Pulse on Electrogenerated FeO₄^2- and Degradation of Sodium Dodecylbenzene sulfonate by FeO₄^2-

1.
School of Chemistry and Material, Fujian Normal University, Fuzhou 350007

Corresponding author: CHEN Zhen,
Received Date: 25 January 2004
Available Online: 12 August 2004
Fund Project: 福建省教育厅项目(JA0192,JA0177,JA0189) (JA0192,JA0177,JA0189)福建省科技厅重点项目(02H034) (02H034)

Three iron materials, low-carbon steel, high-carbon steel and gray cast iron were used respectively as the anode in the electrolysis production of ferrate(Ⅵ). The results show that their current efficiencies were remarkably different with the carbon content, the gray cast iron showed the highest FeO₄^2- current efficiency. An intermittent negative square wave pulsed on the anode was capable of effectively improving the oxide film elimination on the anode surface, with distinct increase of current efficiency. The removal rate of COD_Cr was more than 85% when the freshly produced ferrate(Ⅵ) via electrolysis was used to degrade sodium dodecyl benzene sulfonate (SDBS) which was in a synthetic waste-water sample.
- ferrate(Ⅵ),
- electrolysis,
- pulse square wave,
- sodium dodecyl benzene sulfonate
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Effect of Negative Pulse on Electrogenerated FeO₄^2- and Degradation of Sodium Dodecylbenzene sulfonate by FeO₄^2-