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气液混合脉冲放电体系中偶氮染料的脱色效果

Keywords: 气液混合,脉冲放电,等离子体,酸性橙Ⅱ,脱色,动力学分析

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Abstract:

为了深入探究水包气式气液混合脉冲放电体系中各参数对有机物降解效果的影响,建立了多针-板电极形式的气液混合脉冲放电等离子体体系,以典型的偶氮染料——酸性橙Ⅱ(AO7)为目标物,考察该体系中影响染料脱色效果的关键因素。研究结果表明,气液混合脉冲放电体系中与脉冲电源输入功率有关的因素(脉冲电压峰值和脉冲频率)对AO7脱色效果影响明显。随着脉冲电压峰值和脉冲频率的增加,AO7溶液的脱色效率和相应的准一级降解动力学常数增加。在较高的脉冲电压峰值(30kV)和脉冲频率(75Hz)条件下,10mg/LAO7溶液

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