Construction of In2O3/ZnO yolk-shell nanofibers for room-temperature NO2 detection under UV illumination
Construction of In2O3/ZnO yolk-shell nanofibers for room-temperature NO2 detection under UV illumination
复制标题
In2O3/ZnO蛋黄壳纳米纤维的构建用于紫外照明下室温NO2检测
DOI：
10.1016/j.jhazmat.2020.124093
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发表时间：
2021-02-05
影响因子：
13.6
通讯作者：
Liu, Yichun
中科院分区：
文献类型：
--
作者：
Han, Chaohan;Li, Xiaowei;Liu, Yichun
室温气体传感器已成为检测周围环境中爆炸性或有毒气体的有效平台。然而，由于低温下反应活性低，室温气体传感器通常灵敏度极差，响应/恢复特性迟缓。在此，我们提出了一种室温 NO2 传感器，在紫外线 (UV) 照射下灵敏度大大提高，响应/恢复速度更快。基于In2O3/ZnO蛋黄壳纳米纤维的传感器对1 ppm NO2表现出卓越的灵敏度（R-g/R-a = 6.0）和快速响应/恢复时间（
Room-temperature gas sensors have emerged as effective platforms for sensing explosive or toxic gases in ambient environment. However, room-temperature gas sensor usually suffers from extremely poor sensitivity and sluggish response/recovery characteristics due to the low reacting activity at low temperature. Herein, we present a room-temperature NO2 sensor with greatly enhanced sensitivity and rapid response/recovery speed under ultraviolet (UV) illumination. The sensor based on In2O3/ZnO yolk-shell nanofibers exhibits remarkable sensitivity (R-g/R-a = 6.0) to 1 ppm NO2 and rapid response/recovery time (