Au modified SnO2 submicron flowers sensor for efficient detection of formaldehyde and its application in detection of green vegetables

被引：3
作者：
Chao, Junfeng [1 ]
Zhang, Ke [1 ]
Meng, Deshuo [1 ]
Sun, Yeguo [2 ]
机构：
[1] Huainan Normal Univ, Coll Elect Engn, Huainan 232038, Peoples R China
[2] Huainan Normal Univ, Off Acad Res, Huainan 232038, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2023年 / 168卷
关键词：
Gas sensors; Formaldehyde; Au modifiedSnO2; Bagged baby cabbage; Gas sensing mechanism; GAS SENSOR; HIGH-SENSITIVITY; MICROSPHERES; NANOSHEETS; NANOPARTICLES; SELECTIVITY;
D O I：
10.1016/j.materresbull.2023.112481
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Au modified SnO2 submicron flowers were successfully synthesized through hydrothermal route and calcination process. The morphology, microstructure and optical properties were thoroughly investigated. The gas sensing performance of pristine SnO2 and Au modified SnO2 were investigated towards different concentrations of formaldehyde gas. Remarkably, the sensor based on Au/SnO2-2 exhibits high response, fast response/recovery speed, excellent selectivity and stability. The formaldehyde sensing mechanism was also discussed in depth. Furthermore, the practical application test in bagged baby cabbage was performed after the vegetable was soaked in the formaldehyde solution.
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页数：8
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