Electrochemical Oxidation of 2,4,6-Trinitrophenol on Ti/SnO₂-Sb₂O₅/PbO₂ Anode for Waste Water Treatment

Abstract:

The electrochemical oxidation of 2,4,6-trinitrophenol on Ti/SnO₂-Sb₂O₅/PbO₂ electrode was studied by cyclic voltammetry in this paper. The electrochemical behaviour of the electrode in sodium sulfate solution and in the mixture solution of sodium sulfate and 2,4,6-trinitrophenol has been studied. The experimental results of cyclic voltammetry showed that acidic media was suitable for efficient electrochemical oxidation of 2,4,6-trinitrophenol. Some electro-generated reagent formed in the electrolysis process and 2,4,6-trinitrophenol could be oxidized by the electro-generated reagent. The Ti/SnO₂-Sb₂O₅/PbO₂ electrode was used as the anode and the electrolysis experiment was carried out under the optimized conditions. The electrolysis process was monitored by UV-visible spectrometry and high performance liquid chromatography (HPLC), and the chemical oxygen demand (COD) was determined by the potassium dichromate method. The mechanism of 2,4,6-trinitrophenol be oxided was studied primarily by the cyclic voltammetry and UV-visible spectrometry. The results of electrolysis experiment demonstrated the possibility that the electrode was used as an anode for electrochemical treatment of 2,4,6-trinitrophenol contained in the waste water.

• Periodical: Advanced Materials Research (Volumes 864-867)
• Pages: 1564-1568
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.864-867.1564
• Online since: December 2013
• Authors: Bin Xue, Jing Han Zhai, Jian Ya Wang, Jian Sun, Ning Hao, Jiao Yang
• Keywords: 2,4,6-trinitrophenol, Cyclic Voltammetry (CV), Electrochemical Oxidation, Ti/SnO₂-Sb₂O₅/PbO₂ Electrode, Wastewater Treatment

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