Photochemical preparation of SnO2 nanoparticles for application in alcohol sensor

2nd International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Chen, Zhicong^1 ; Zhao, Yongpei^1 ; Tan, Ying^1 ; Xin, Yinger^1 ; Deng, Jiaxin^1 ; Sun, Fengqiang^2^3 ; He, Guping^1

School of Chemistry and Environment, South China Normal University, Guangzhou, China^1

Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, China^2

Guangzhou Key Laboratory of Materials for Energy Conversion and Storage, Guangzhou, China^3

关键词: Alcohol sensor;    Gas sensing material;    Low costs;    Optimized sensors;    Photochemical method;    Photochemical preparation;    Sensing response;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/490/2/022049/pdf
DOI  :  10.1088/1757-899X/490/2/022049

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

SnO2 nanoparticles were prepared by a photochemical method with different concentrations of PVP as surfactant. The PVP can put regular impact on the size of the particles and the corresponding sensing response to alcohol gas. The optimized sensor of the SnO2 nanoparticles could exhibit a response of ∼21 to 50 ppm alcohol at 270 °C, which is more than 2-folds of that without PVP. The sensor also had excellent stability, repeatability and concentration linear, exhibiting good practicality in alcohol detection. The method is easily-manipulated, low-cost and green for obtaining a gas sensing material.