| A facile and efficient method for rapid detection of trace nitroaromatics in aqueous solution | |
| Shengyang Tao ; Yan Li ; Guangtao Li ; Cailan Yu | |
| 2010-10-12 ; 2010-10-12 | |
| 关键词 | Bibliography New Development Experimental/ chemical sensors II-VI semiconductors optical sensors organic compounds photoluminescence radiation quenching silicon compounds zinc compounds/ facile method rapid detection trace nitroaromatics aqueous solution photoluminescence quenching optical chemosensor nitroaromatic contaminants mesoporous silica films 2,4,6-trinitrotoluene Stern-Volmer model organic molecules permeability adsorptive properties SiO/sub 2/:ZnO/ A8280T Chemical sensors A0670D Sensing and detecting devices A7855E Photoluminescence in II-VI and III-V semiconductors B7230L Chemical sensors B2520D II-VI and III-V semiconductors B7320T Chemical variables measurement/ SiO2:ZnO/ss SiO2/ss ZnO/ss O2/ss Si/ss Zn/ss O/ss SiO2/bin ZnO/bin O2/bin Si/bin Zn/bin O/bin ZnO/dop Zn/dop O/dop |
| 中文摘要 | A novel photoluminescence (PL) quenching-based optical chemosensor has been developed for the sensing of nitroaromatic contaminants in aqueous solutions. ZnO clusters have been easily doped into mesoporous silica films. The presence of nitroaromatic compounds such as 2,4,6-trinitrotoluene (TNT) and nitrophenol can be rapidly detected from the quenching of the visible emission of the ZnO semiconductor doped in the mesoporous films. The emission quenching is quantitative and can be analyzed on the basis of the Stern-Volmer model relation with the quenching process of ZnO and organic molecules. Due to the good permeability and adsorptive properties, the PL mesoporous films exhibit remarkable sensitivity for the detection of these organic molecules at low concentration levels. These results suggest that these new mesostructured composite films are potentially useful chemosensory materials for detecting nitroaromatic pollutants in water. |
| 语种 | 英语 |
| 出版者 | Royal Society of Chemistry ; UK |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/81083]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Shengyang Tao,Yan Li,Guangtao Li,et al. A facile and efficient method for rapid detection of trace nitroaromatics in aqueous solution[J],2010, 2010. |
| APA | Shengyang Tao,Yan Li,Guangtao Li,&Cailan Yu.(2010).A facile and efficient method for rapid detection of trace nitroaromatics in aqueous solution.. |
| MLA | Shengyang Tao,et al."A facile and efficient method for rapid detection of trace nitroaromatics in aqueous solution".(2010). |
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