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首页> 外文期刊>Journal of Advanced Science >大気圧プラズマジェットを用いたタール色素水溶液の脱色
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大気圧プラズマジェットを用いたタール色素水溶液の脱色

机译：大气压等离子射流对焦油染料水溶液的脱色

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摘要

The decolorization of tar dye aqueous solution by the irradiation of an atmospheric-pressure plasma jet was examined by absorbance spectrum measurement and nuclear magnetic resonance (NMR) and mass spectrometry (MS) analyses. An atmospheric-pressure argon (Ar) plasma jet was generated at a frequency of 10 kHz with an applied voltage of 10 kV and an Ar gas flow rate of 10 L/min. When 10 mL of 100 mg/L tartrazine aqueous solution was irradiated with this plasma jet, the yellow solution gradually became lighter with increasing irradiation time and was almost completely decolorized after 50 min of irradiation. In addition, the results of MS analysis revealed that tartrazine molecules with a mass-to-charge ratio (m/z) of 579 were decomposed mainly into unidentified substances with m/z = 271. This result indicated that the decolorization was caused by the destruction of the azo bond in the tartrazine molecules.
机译：通过吸收光谱测量以及核磁共振（NMR）和质谱（MS）分析来检查大气压等离子体射流的照射引起的焦油染料水溶液的脱色。在施加的电压为10 kV，氩气流量为10 L / min的情况下，以10 kHz的频率产生了大气压氩（Ar）等离子体射流。当用该等离子流照射10mL的100mg / L酒石酸水溶液时，黄色溶液随着照射时间的增加而逐渐变浅，并且在照射50分钟后几乎完全脱色。此外，MS分析的结果表明，质荷比（m / z）为579的酒石黄分子主要分解为m / z = 271的不明物质。该结果表明脱色是由破坏酒石黄分子中的偶氮键。

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