文献类型：期刊文献

英文题名：Optimization of Working Conditions by Response Surface Methodology of Sulfur Dioxide Gas Sensors Based on Au/CoO-2La(2)WO(6) Nanoparticles

作者：Yang, Fuxiu[1];Zhang, Wenjuan[1];Zhao, Youxi[1,2];Ji, Yizhi[1,2];Liu, Baining[1,2];Zhou, Kaowen[1,2]

第一作者：Yang, Fuxiu

通讯作者：Zhou, KW[1];Zhou, KW[2]

机构：[1]Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China;[2]Beijing Key Lab Biomass Waste Resource Utilizat, Beijing 100023, Peoples R China

第一机构：北京联合大学生物化学工程学院

通讯机构：[1]corresponding author), Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China;[2]corresponding author), Beijing Key Lab Biomass Waste Resource Utilizat, Beijing 100023, Peoples R China.|[1141726]北京联合大学生物化学工程学院;[11417]北京联合大学;

年份：2020

卷号：5

期号：36

起止页码：11145-11151

外文期刊名：CHEMISTRYSELECT

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000573626900008)】；

基金：This work was supported by Beijing Natural Science Foundation (Grant No.2152013) and Postgraduate Funding Project of Beijing Union University (2019-068).

语种：英文

外文关键词：Luminescence; Nanoparticles; Response surface methodology; Sensors; Sulfur dioxide

摘要：In the past, the working conditions of cataluminescence (CTL) method were simply determined by single factor experiment. This paper will illustrate the optimization of working conditions of a novel sulfur dioxide gas sensor based on Au/CoO-2La(2)WO(6)nanoparticles by response surface methodology (RSM). Under optimized working conditions, analytical wavelength 522.77 nm, reaction temperature 111.15 degrees C and carrier gas velocity 144.92 ml/min, the sensitivity of the method can be increased by 6.4 %. The optimization process is universal for many multi parameter processes. There is a good linear relationship between the CTL intensity and the concentration of sulfur dioxide in the range of 0.06-120 mg/m(3)with a detection limit (3 sigma) of 0.015 mg/m(3). The sensing properties of sensitive material were investigated. The results indicated that nano-Au/CoO-2La(2)WO(6)could be a good candidate for fabricating sulfur dioxide gas sensors.