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标题：Electrochemical Degradation of Aromatic Compounds at Modified SnO₂ Anodes
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作者：M. Ihos, F. Manea, A. Iovi
期刊名称：Universitatea Politehnica din Timisoara. Buletinul Stiintific. Seria Chimie si Ingineria Mediului
印刷版ISSN：1224-6018
出版年度：2009
卷号：54(68)
期号：01
出版社：Universitatea Politehnica din Timisoara
摘要：The purpose of this study was the electrochemical degradation of a mixture of Reactive Black 5 (RB5) azo dye and nonylphenol ethoxylate with 9 ethoxy units (NP9EO) at modified SnO₂ anodes. Ti/RuO₂/SnO₂-Sb₂O₅-RuO₂ and Ti/RuO₂/SnO₂-Sb₂O₅-Bi₂O₃ anodes were prepared by thermal decomposition of appropriate precursors. Both NP9EO and RB5 concentrations were 0.1 g/L in 0.1 M Na₂SO₄ as supporting electrolyte. The electrolysis were conducted under galvanostatic regime at applied current densities of 50, 75 and 100 A/m² and electrolysis time of 30, 60 and 120 minutes. The electrolysed solutions were characterised by UV-VIS spectroscopy. The spectral data revealed the aromatic ring opening and they were also used to assess the colour removal efficiency. Based on the spectral data, it was assessed the colour efficiency and some aspects of oxidation process were discussed.
关键词：aromatic compounds, electrochemical degradation, modified SnO₂ anodes