当前位置：
X-MOL 学术
›
ACS Appl. Electron. Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Ultraviolet-Induced Gas Sensing Performance of Ag/WO3/rGO Nanocomposites for H2S Gas Sensors
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2023-06-18 , DOI: 10.1021/acsaelm.3c00349
Yanghai Gui 1 , Jintao Wu 1 , Kuan Tian 1 , Huishi Guo 1 , Xiaoyun Qin 1 , Xiaomei Qin 1 , Xiang Guo 2 , Canxiang Fang 2 , Peng Liu 3
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2023-06-18 , DOI: 10.1021/acsaelm.3c00349
Yanghai Gui 1 , Jintao Wu 1 , Kuan Tian 1 , Huishi Guo 1 , Xiaoyun Qin 1 , Xiaomei Qin 1 , Xiang Guo 2 , Canxiang Fang 2 , Peng Liu 3
Affiliation
|
The attention toward cost-effective and high-performance H2S sensors is increasing due to the growing need for physical health and environmental monitoring. In this paper, Ag/WO3/reduced graphene oxide (rGO) nanocomposites were synthesized by using a microwave-assisted gas–liquid interfacial method. Nanomaterials with different Ag doping contents were successfully prepared with AgNO3 as an additive. The Ag/WO3/rGO sensors exhibit remarkable selectivity toward H2S, and the gas sensing performances of Ag-doped WO3/rGO gas sensors are significantly better than those of WO3/rGO. At 150 °C, the response value of the 10 wt % Ag/WO3/rGO gas sensor to 100 ppm H2S is 204.5, which is 7 times higher than that of WO3/rGO, and the response/recovery time of the sensor is 9/49 s, respectively. Additionally, the gas sensing performance of the sensor is further enhanced under ultraviolet (UV) irradiation. The response value is enhanced to 685.8, which is 3 times higher than that without UV irradiation, and the response/recovery time is reduced to 8/38 s, respectively. The sensing mechanism is also discussed. This work offers a potential application for H2S detection in environmental monitoring and smart healthcare.
中文翻译：
用于 H2S 气体传感器的 Ag/WO3/rGO 纳米复合材料的紫外线诱导气体传感性能
由于对身体健康和环境监测的需求不断增长，人们对经济高效且高性能的 H 2 S 传感器的关注日益增加。本文采用微波辅助气液界面法合成了Ag/WO 3 /还原氧化石墨烯(rGO)纳米复合材料。以AgNO 3作为添加剂，成功制备了不同Ag掺杂含量的纳米材料。Ag/WO 3 /rGO传感器对H 2 S表现出显着的选择性，并且Ag掺杂的WO 3 /rGO气体传感器的气敏性能明显优于WO 3 /rGO气体传感器。150 °C 时，10 wt% Ag/WO 3的响应值/rGO气体传感器对100 ppm H 2 S的响应值为204.5，比WO 3 /rGO高7倍，传感器的响应/恢复时间分别为9/49 s。此外，在紫外线（UV）照射下，传感器的气体传感性能进一步增强。响应值增强至685.8，比无UV照射时提高了3倍，响应/恢复时间分别缩短至8/38 s。还讨论了传感机制。这项工作为H 2 S检测在环境监测和智能医疗方面提供了潜在的应用。
更新日期：2023-06-18
中文翻译：
用于 H2S 气体传感器的 Ag/WO3/rGO 纳米复合材料的紫外线诱导气体传感性能
由于对身体健康和环境监测的需求不断增长，人们对经济高效且高性能的 H 2 S 传感器的关注日益增加。本文采用微波辅助气液界面法合成了Ag/WO 3 /还原氧化石墨烯(rGO)纳米复合材料。以AgNO 3作为添加剂，成功制备了不同Ag掺杂含量的纳米材料。Ag/WO 3 /rGO传感器对H 2 S表现出显着的选择性，并且Ag掺杂的WO 3 /rGO气体传感器的气敏性能明显优于WO 3 /rGO气体传感器。150 °C 时，10 wt% Ag/WO 3的响应值/rGO气体传感器对100 ppm H 2 S的响应值为204.5，比WO 3 /rGO高7倍，传感器的响应/恢复时间分别为9/49 s。此外，在紫外线（UV）照射下，传感器的气体传感性能进一步增强。响应值增强至685.8，比无UV照射时提高了3倍，响应/恢复时间分别缩短至8/38 s。还讨论了传感机制。这项工作为H 2 S检测在环境监测和智能医疗方面提供了潜在的应用。
京公网安备 11010802027423号