硫化氢
检出限
分析物
化学
选择性
吸收(声学)
肉眼
自来水
硫化氢
氢
溶解度
硫化物
每个符号的零件数
分析化学(期刊)
材料科学
环境化学
色谱法
有机化学
环境科学
硫黄
催化作用
环境工程
复合材料
作者
Hye W. Chun,Jian Zheng,Eun Hye Lee,Byeong M. Oh,Chan-Bong Lee,Jun Min,Eunsu Kim,Eunha Kim,Woosung Lee,Jong H. Kim
标识
DOI:10.1016/j.snb.2023.134989
摘要
Hydrogen sulfide (H2S) has adverse effects on humans in various routes through water and air. However, the versatile detection of hydrogen sulfide (H2S) gas in various environments is still challenging. Herein, we report a highly sensitive, rapid, and selective colorimetric chemosensor (IID1) for the detection of H2S in diverse conditions including solution in pure water, thin-film, dyed-fabric, and coated silica in ambient air. The H2S-induced chemical reaction of IID1 results in significant spectral changes in UV-Vis absorption, accompanied by a discernible color change from dark red to colorless. Moreover, IID1 exhibits excellent selectivity among the competitive analytes, with a detection limit of 1.12 ppb and a rapid detection time (<10 s), which is among the highest performances reported for colorimetric H2S chemosensors. The detection mechanism is systemically investigated based on the analyses of UV-Vis absorption, NMR, and mass spectra. Utilizing the high solubility of IID1 in pure water, we successfully evaluate on-site water (river, lake, stream, reservoir, and tap water) quality with excellent accuracy. Furthermore, we demonstrate H2S detection on paper strips and face masks using the coated IID1. Our results suggest that IID1 is a practical sensor platform for the efficient detection of H2S in various environments.
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