Fabrication and characterization of cellulose acetate-based nanofibers and nanofilms for H2S gas sensing application

Nour S. Abdel Rahman, Yaser E. Greish, Saleh T. Mahmoud, Naser N. Qamhieh, Hesham F. El-Maghraby, Dagou Zeze

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number117643
JournalCarbohydrate Polymers
Volume258
DOIs
Publication statusPublished - Apr 15 2021

Keywords

  • Acetone
  • Cellulose acetate
  • Cellulose acetate
  • Dimethyl acetamide
  • Glycerol
  • HS sensor
  • Organic-inorganic hybrid nanocomposites
  • Polypyrrole
  • Polypyrrole
  • Tungsten oxide

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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