Gas Sensor Demo

In the present work, Prosopis Juliflora, an invasive alien plant species, is processed and converted into a useful biomass carbon material. For gas sensing application, SnO2 nanoparticles are anchored on the Prosopis Juliflora biomass carbon leaves (BML) using a sol-gel process. The BML/SnO2 nanocomposite is fabricated and tested for hazardous NO2 gas sensing applications. The biomass carbon support and uniform distribution of SnO2 nanoparticles enabled the adsorption/desorption of target gas on the surface of the nanocomposite. The BML/SnO2 nanocomposite is assessed against highly toxic NO2 gas for varying concentrations and shows the maximum sensitivity of 31% for 90 ppm of the target gas. The overall gas sensing mechanism and significance of biomass carbon material is discussed in detail. In precise, the invasive species Prosopis juliflora is converted into useful biomass carbon and it is shown as one of the sustainable and alternative carbon support materials by successfully demonstrate the same as real time NO2 gas leak detecting system.

在当前研究中，对入侵性外来植物物种 Prosopis Juliflora 进行了加工与转化，制备成了一种具有应用价值的生物质碳材料。针对气体传感应用，采用溶胶-凝胶工艺，将 SnO2 纳米粒子固定于 Prosopis Juliflora 生物质碳叶（BML）上。所制备的 BML/SnO2 纳米复合材料被用于危险 NO2 气体的传感应用测试。生物质碳载体及 SnO2 纳米粒子的均匀分布，使得纳米复合材料表面能够实现目标气体的吸附/解吸。该 BML/SnO2 纳米复合材料针对高毒性 NO2 气体进行了不同浓度的评估，对于 90 ppm 的目标气体表现出最大的灵敏度，达到 31%。详细讨论了整体气体传感机制及生物质碳材料的重要性。具体而言，入侵物种 Prosopis Juliflora 被转化为有用的生物质碳，并通过实时 NO2 气体泄漏检测系统的成功演示，证实其为一种可持续且替代的碳载体材料。