Electrospun Polyvinyl Alcohol Nanofibers Containing Titanium Dioxide for Gas Sensor Applications

• Published in: Arabian journal for science and engineering (2011) Vol. 44; no. 1; pp. 251 - 257
• Main Authors: El Fawal, Gomaa F., Hassan, H. Shokry, El-Aassar, Mohamed R., Elkady, Marwa F.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.01.2019; Springer Nature B.V
• Subjects: Chemical industry; Electrospinning; Engineering; Fourier transforms; Gas sensors; Gravimetric analysis; Humanities and Social Sciences; Infrared analysis; Infrared spectroscopy; Liquefied petroleum gas; multidisciplinary; Nanofibers; Nanoparticles; Operating temperature; Polyvinyl alcohol; Research Article - Chemistry; Scanning electron microscopy; Science; Sensors; Thermal analysis; Titanium; Titanium dioxide; Polyvinyl alcohol; Nanofibers; Gas sensors; Titanium dioxide; Liquid petroleum gas
• ISSN: 2193-567X; 1319-8025; 2191-4281
• DOI: 10.1007/s13369-018-3529-z

Electrospun nanofibers for gas sensor application were effectively prepared from polyvinyl alcohol and pluronic solution with different percentages of titanium dioxide ( TiO 2 ) nanoparticles. Nanofibers membrane was subject to detailed analysis by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and thermal gravimetric analysis (TGA). Adding TiO 2 nanoparticles to the blended solution increased nanofibers diameters from 280 ± 20 to 310 ± 30 nm . The gas sensor response of TiO 2 nanofibers (as a function of temperature) was estimated toward liquid petroleum gas (LPG), CO 2 , and O 2 and compared with pure nanofibers. The maximum response value (100%) was obtained for LPG at 160 ∘ C with TiO 2 nanofibers (0.01%). These results show promising gas sensing characteristics (such as lower operating temperatures and sufficient gas responses) for those nanofibers materials.