| Title: | Fluorescence Enhancement of a Metal-Organic Framework for Ultra-Efficient Detection of Trace Benzene Vapor |
| Author(s): | Li WB; Wu Y; Zhong XF; Chen XH; Liang G; Ye JW; Mo ZW; Chen XM; |
| Address: | "School of Biotechnology and Health Sciences, Wuyi University, Guangdong, 529020, China. MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China" |
| ISSN/ISBN: | 1521-3773 (Electronic) 1433-7851 (Linking) |
| Abstract: | "Indoor detection of volatile organic compounds (VOCs) concentration is necessary due to the serious toxicity hazards even at trace level. However, physisorbents usually exhibit weak interactions especially in the presence of trace concentrations of VOCs, thus exhibiting poor responsive signal. Herein, we report a new flexible metal-organic framework (MOF) that exhibits interesting pore-opening behavior after immersing in H(2) O. The pore-opening phase shows significant ( approximately 116 folds) and extremely fast (<1 minute) fluorescence enhancement after being exposed to saturated benzene vapor. The limit of detection concentration for benzene vapor can be calculated as 0.133 mg L(-1) . Thus this material represents the first MOF to achieve visual detection of trace benzene vapor by the naked eyes. Theoretical calculations and single-crystal structure reveal that the special 'bilateral pi-pi stacking' interactions between the host and guest, which facilitate electron transfer and greatly enhance the intensity of fluorescence" |
| Keywords: | Benzene Vapor Fluorescence Turn-on Metal-Organic Framework Supramolecular Interaction Trace; |
| Notes: | "PubMed-not-MEDLINELi, Wen-Bin Wu, Ying Zhong, Xiao-Feng Chen, Xiong-Hai Liang, Gang Ye, Jia-Wen Mo, Zong-Wen Chen, Xiao-Ming eng 22101210, 22101211, 22090061, and 21821003/National Natural Science Foundation of China/ Jiangke 2021-76/Municipal Science and Technology Bureau/ 2017BT01C161/Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program/ Germany 2023/04/18 Angew Chem Int Ed Engl. 2023 Jun 12; 62(24):e202303500. doi: 10.1002/anie.202303500. Epub 2023 May 5" |
