A semiconductor and fluorescence dual-mode room-temperature ammonia sensor achieved by decorating hydroquinone into a metal–organic framework

• DOI: 10.1039/c8cc05459b
• Publication Date: 2018-08-06T23:34:18Z
• Authors: Yong-Peng Li; Shu-Ni Li; Yu-Cheng Jiang; Man-Cheng Hu; Quan-Guo Zhai
• Keywords: Hydroquinone

Presented herein is a magnesium-organic framework (SNNU-88) incorporated with active hydroquinone groups, which exhibits not only remarkable semiconductor sensing for traces of ammonia vapor (5-100 ppm), but also extra-high fluorescence response to liquid NH3·H2O through an unusual turn-off (0-1.5 ppm) and turn-on (3.0-100 luminescence mechanism at room temperature. Such bifunctional quantitative detection together the extraordinary sensitivity selectivity, fast response, good reusability makes SNNU-88 one most powerful sensors.