【摘要】 以过碳酸钠为氧化剂,考察了其对孔雀石绿、灿烂绿、碱性品红及结晶紫四种三苯甲烷类染料的降解行为。结果表明:在pH=11、温度为20℃、过碳酸钠的浓度为10mg/L、降解时间为20min时,过碳酸钠对灿烂绿的脱色率可达到95%。通过比较四种染料的脱色效果,均显示了良好的脱色能力,说明过碳酸钠是一种广谱的三苯甲烷类染料的良好脱色剂。在此基础上,对灿烂绿的脱色机理进行了初步探讨。更多还原

【Abstract】 The study on the degradation of four kinds of triphenylmethane dyes including malachite green,brilliant green,fuchsin basic and crystal violet was investigated by employing sodium percarbonate as an oxidant.The results showed that,under the optimal condition of pH 11,20℃and 10mg/L sodium carbonate,the decolorization rate of brilliant green could reach to 95% within 20min.By comparison,it was found that sodium carbonate also displayed excellent decolorization capacity towards other three kinds of triphenylmethane dyes,implying that sodium carbonate is a potential decolorant for triphenylmethane dyes.Moreover,the possible degradation mechanism of malachite green was proposed.更多还原