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Fabrication and characterization of cellulose acetate-based nanofibers and nanofilms for H2S gas sensing application.
Abdel Rahman, Nour S; Greish, Yaser E; Mahmoud, Saleh T; Qamhieh, Naser N; El-Maghraby, Hesham F; Zeze, Dagou.
Afiliación
  • Abdel Rahman NS; Department of Chemical Engineering, UAE University, Al Ain, United Arab Emirates.
  • Greish YE; Department of Chemistry, UAE University, Al Ain, United Arab Emirates; Department of Ceramics, National Research Centre, NRC, Cairo, Egypt.
  • Mahmoud ST; Department of Physics, UAE University, Al Ain, United Arab Emirates. Electronic address: saleh.thaker@uaeu.ac.ae.
  • Qamhieh NN; Department of Physics, UAE University, Al Ain, United Arab Emirates.
  • El-Maghraby HF; Department of Chemistry, UAE University, Al Ain, United Arab Emirates; Department of Ceramics, National Research Centre, NRC, Cairo, Egypt.
  • Zeze D; Department of Engineering, Durham University, Durham, United Kingdom.
Carbohydr Polym ; 258: 117643, 2021 Apr 15.
Article en En | MEDLINE | ID: mdl-33593537
Electrospun nanofibers and solution-casting nanofilms were produced from an environmentally friendly cellulose acetate (CA) blended with glycerol (as an ionic liquid (IL)), mixed with polypyrrole (PPy, a conducting polymer) and doped with tungsten oxide (WO3) nanoparticles. The sensing membranes fabricated were used to detect H2S gas at room temperature and shown to exhibit high performance. The results revealed that the lowest operating temperature of both nanofiber and nanofilm sensors was 20 °C, with a minimum gas detection limit of 1 ppm. Moreover, the sensor exhibits a reasonably fast response, with a minimum average response time of 22.8 and 31.7 s for the proposed nanofiber and nanofilm based sensors, respectively. Furthermore, the results obtained indicated an excellent reproducibility, long-term stability, and low humidity dependence. Such distinctive properties coupled with an easy fabrication technique provide a promising potential to achieve a precise monitoring of harmful H2S gas in both indoor and outdoor atmospheres.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Carbohydr Polym Año: 2021 Tipo del documento: Article País de afiliación: Emiratos Árabes Unidos Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Carbohydr Polym Año: 2021 Tipo del documento: Article País de afiliación: Emiratos Árabes Unidos Pais de publicación: Reino Unido