| Title: | Highly-Sensitive Detection of Volatile Organic Compound Vapors by Electrospun PANI/P3TI/PMMA Fibers |
| Author(s): | Vu DL; Lin TF; Lin TH; Wu MC; |
| Address: | "Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 33302, Taiwan. Department of Fiber and Composite Materials, Feng Chia University, Taichung 40724, Taiwan. Green Technology Research Center, Chang Gung University, Taoyuan 33302, Taiwan. Division of Pediatric Neonatology, Department of Pediatrics, Chang Gung Memorial Hospital, Linkou, Taoyuan 33305, Taiwan" |
| ISSN/ISBN: | 2073-4360 (Electronic) 2073-4360 (Linking) |
| Abstract: | "Detection of volatile organic compounds (VOCs) is one of the essential concerns for human health protection and environmental monitoring. In this study, the blending fibers using a donor-acceptor copolymer were fabricated by electrospinning technique and subsequent UV/ozone treatment. The donor-acceptor polymers were polyaniline, P3TI, and poly(methyl methacrylate) (PANI/P3TI/PMMA) fibers with a cylindrical structure and uniform morphology. VOCs were directly adsorbed by the copolymer materials assembled onto a glass surface or metal framework scaffold. Under optimal conditions, the PANI/P3TI/PMMA fibers exhibit rapid response and high selectivity to VOC vapors within 30 min of UV/ozone treatment. Additionally, the optical transmittance changes of the freestanding fibers show significant improvement of more than 10 times to those fibers on glass substrates. It is speculated that the presence of P3TI leads to the formation of a heterojunction and increases the electron reception behavior. The modification of the electronic structure as exposed to VOC vapors tend to significantly alter the optical absorbance of the fibers, leading to the excellent sensing at low VOC concentration" |
| Keywords: | P3ti UV/ozone treatment VOCs detection electrospinning freestanding fibers; |
| Notes: | "PubMed-not-MEDLINEVu, Duy Linh Lin, Tz-Feng Lin, Ting-Han Wu, Ming-Chung eng Switzerland 2020/02/23 Polymers (Basel). 2020 Feb 16; 12(2):455. doi: 10.3390/polym12020455" |
