A plasma-assisted cataluminescence sensor for ethyne detection
A plasma-assisted cataluminescence sensor for ethyne detection
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用于乙炔检测的等离子体辅助催化发光传感器
DOI：
10.1007/s00216-016-9908-y
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发表时间：
2016-09
影响因子：
4.3
通讯作者：
Na Na
中科院分区：
文献类型：
--
作者：
Peng Conghu;Shao Kang;Long Zi;Ouyang Jin;Na Na
乙炔的检测不仅在环境监测中，而且在工业领域的过程控制和机理研究中具有重要意义。在这里，一个新的传感器的基础上，等离子体辅助催化发光（PA-CTL）已被制作用于检测乙炔。基于空气产生的低温等离子体（LTP）可以增强催化剂的催化能力和分析物的反应性，我们在Zn/SiO2纳米材料表面观察到了显著的催化发光（CTL）。CTL发射已被证明是影响放电气体的类型或金属离子掺杂的SiO2催化剂。通过对工作温度和气体流量的优化，构建了一种基于PA-CTL的乙炔气体传感器。如所证明的，该传感器表现出11-1160 ng/mL（10-1000 ppm）的线性，检测限（LOD）为5 ng/mL（5 ppm），并且还表现出良好的选择性以及良好的稳定性。该传感器结构简单，成本低，响应稳定，可用于实际应用，拓展了CTL的应用范围，在工业物质检测中具有广阔的应用前景。
The detection of ethyne is crucial not only in environmental monitoring but also in process controlling and mechanism studies in industrial fields. Here, a new sensor based on the plasma-assisted cataluminescence (PA-CTL) has been fabricated for the detection of ethyne. Based on the assistance of low-temperature plasma (LTP) generated by air, which can enhance the catalytic ability of catalysts and the reactivity of the analytes, we observed significant cataluminescence (CTL) emissions on the surface of nanomaterials of Zn/SiO2. CTL emission has demonstrated to be affected by the type of discharge gases or the metal ions doping on the catalysts of SiO2. By the optimizations on the working temperature and gas flow rate of the air, a PA-CTL based sensor was constructed for the detection of ethyne. As demonstrated, this sensor exhibited a linearity of 11–1160 ng/mL (10–1000 ppm) with a limit of detection (LOD) of 5 ng/mL (5 ppm), and also showed good selectivity as well as good stability. This sensor is simple, low-cost, and could give stable responses for actual applications, which will expand the applications of CTL and show potentials in industrial substances detections.Graphical AbstractA plasma-assisted cataluminescence gas sensor for ethyne detection
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