| Title: | Ozone-induction coupled with plasma assistance to enhance cataluminescence for monitoring of volatile organic compounds |
| Author(s): | Huang W; Hu Y; Lu Z; Zhong Y; Zhang R; Li G; |
| Address: | "School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China. School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China. zhangrk5@mail.sysu.edu.cn. School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China. cesgkl@mail.sysu.edu.cn" |
| DOI: | 10.1007/s00604-018-3057-2 |
| ISSN/ISBN: | 1436-5073 (Electronic) 0026-3672 (Linking) |
| Abstract: | "The authors describe a strategy for ozone-induction coupling with plasma assistance (O(3)-I/PA) to enhance cataluminescence (CTL) based sensing of volatile organic compounds (VOCs). A homemade O(3)-I/PA CTL sensor system was constructed based on this strategy. O(3)-I/PA can significantly enhance the CTL response to many compounds that were hardly detectable previously with adequate sensitivity. Without any preconcentration, the limits of detection (for S/N = 3) are 20 mug.m(-3) (= 5 ppbv) for toluene and 8 mug.m(-3) (6.4 ppbv) for formaldehyde. VOCs including benzene, alkanes, halohydrocarbons, alkenes alcohols, aldehydes, ketones and ethers are found to produce a strong response when using this sensor system. Mechanistic studies showed that the synergistic effect of ozone-induction and plasma assistance promote the oxidation of the VOCs under formation of CO(2). This strongly favors CTL emission. The sensor system can be used as a direct-reading detector for on-line and real-time monitoring of total VOCs. It also can be used as a detector in gas chromatography for the identification of individual VOCs. It is perceived that this work paves the way to both a new kind of vapor sensor and to a detection scheme in gas chromatography. Graphical abstract The synergistic effect of ozone-induction and plasma assistance promote the deep oxidation of the VOCs into CO(2), which strongly favors cataluminescence emission" |
| Keywords: | Cataluminescence Chemiluminescence Deep oxidation Detector Ozone induction Plasma assistance Real-time monitoring Sensor TiO2 Volatile organic compounds; |
| Notes: | "PubMed-not-MEDLINEHuang, Wanting Hu, Yufei Lu, Zhenyu Zhong, Yanhui Zhang, Runkun Li, Gongke eng 21605163/National Natural Science Foundation of China/International 21475153, 21675178/National Natural Science Foundation of China/International 21775167/National Natural Science Foundation of China/International 2016A030313358/Natural Science Foundation of Guangdong Province/International 2015A030401036/Funds for Public Welfare Research and Capacity Building in Guangdong Province of China/International 201604020165/the Guangzhou Science and Technology Program of China/International Research Support, Non-U.S. Gov't Austria 2018/11/08 Mikrochim Acta. 2018 Nov 6; 185(12):531. doi: 10.1007/s00604-018-3057-2" |
