A Formaldehyde Sensor Based on Molecularly-Imprinted Polymer on a TiO2 Nanotube Array
AbstractToday, significant attention has been brought to the development of sensitive, specific, cheap, and reliable sensors for real-time monitoring. Molecular imprinting technology is a versatile and promising technology for practical applications in many areas, particularly chemical sensors. Here, we present a chemical sensor for detecting formaldehyde, a toxic common indoor pollutant gas. Polypyrrole-based molecularly-imprinted polymer (PPy-based MIP) is employed as the sensing recognition layer and synthesized on a titanium dioxide nanotube array (TiO2-NTA) for increasing its surface-to-volume ratio, thereby improving the sensor performance. Our sensor selectively detects formaldehyde in the parts per million (ppm) range at room temperature. It also shows a long-term stability and small fluctuation to humidity variations. These are attributed to the thin fishnet-like structure of the PPy-based MIP on the highly-ordered and vertically-aligned TiO2-NTA. View Full-Text
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Tang, X.; Raskin, J.-P.; Lahem, D.; Krumpmann, A.; Decroly, A.; Debliquy, M. A Formaldehyde Sensor Based on Molecularly-Imprinted Polymer on a TiO2 Nanotube Array. Sensors 2017, 17, 675.
Tang X, Raskin J-P, Lahem D, Krumpmann A, Decroly A, Debliquy M. A Formaldehyde Sensor Based on Molecularly-Imprinted Polymer on a TiO2 Nanotube Array. Sensors. 2017; 17(4):675.Chicago/Turabian Style
Tang, Xiaohui; Raskin, Jean-Pierre; Lahem, Driss; Krumpmann, Arnaud; Decroly, André; Debliquy, Marc. 2017. "A Formaldehyde Sensor Based on Molecularly-Imprinted Polymer on a TiO2 Nanotube Array." Sensors 17, no. 4: 675.
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