Washable Colorimetric Nanofiber Nonwoven for Ammonia Gas Detection
| Autor: | Woosung Lee, Young Sik Kang, Younghwan Bae, Hyun-Jung Choi, Seung Ju Lim, Jung Yeon Kim, Hyun Ju Oh, Byeong Jin Yeang, Young Ki Park, Jong H. Kim, Wan-Gyu Hahm |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Universal testing machine
Thermogravimetric analysis Materials science ammonia gas Polymers and Plastics Scanning electron microscope Infrared spectroscopy General Chemistry meta-aramid nanofiber gas detection Electrospinning Article lcsh:QD241-441 Ammonia chemistry.chemical_compound chemistry Chemical engineering lcsh:Organic chemistry Nanofiber colorimetric nanofiber sensor Laundry detergent |
| Zdroj: | Polymers, Vol 12, Iss 1585, p 1585 (2020) Polymers Volume 12 Issue 7 |
| ISSN: | 2073-4360 |
| Popis: | The colorimetric sensor is a facile, cost-effective, and non-power-operated green energy material for gas detection. In this study, the colorimetric sensing property of a meta-aramid/dye 3 nanofiber sensor for ammonia (NH3) gas detection was investigated. This colorimetric sensor was prepared using various dye 3 concentrations via electrospinning. Morphological, thermal, structural, and mechanical analyses of the sensor were carried out by field-emission scanning electron microscopy, thermogravimetric analysis, Fourier-transform infrared spectroscopy, and a universal testing machine, respectively. A homemade computer color matching machine connected with a gas flow device characterized the response of the meta-aramid/dye 3 nanofiber colorimetric sensor to various exposure levels of NH3 gas. From the results, we confirmed that this colorimetric green energy sensor could detect ammonia gas in the concentration of 1&ndash 10 ppm with a sensing response time of 10 s at room temperature. After washing with laundry detergent for 30 min, the colorimetric sensors still exhibited sensing property and reversibility. |
| Databáze: | OpenAIRE |
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