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PEG改性Bi-PbO2电极对茜素绿的电催化降解作用

DOI: 10.11830/ISSN.1000-5013.2014.02.0165

Keywords: 茜素绿, PEG-Bi-PbO2电极, 电催化氧化, 蒽醌染料, 一级反应动力学

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Abstract:

利用聚乙二醇(PEG)改性Bi-PbO2电极电催化氧化茜素绿(AG)模拟染料废水,研究初始质量浓度、电流密度和pH值对降解率的影响.结果表明:高电流密度有利于提高降解率,但可能导致较大的能源浪费;高初始质量浓度有利于提高电流利用率;而pH值不是降解率的主要影响因素.利用红外光谱对AG的氧化过程进行研究,表明AG的氧化主要依靠电解产生的?OH,氧化过程经历了苯环开环、断链,并进一步被氧化为CO2和H2O等小分子化合物.化学动力学研究表明,电催

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