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

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 20oC, 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.

Citation

Abdel Rahman, N. S., Greish, Y. E., Mahmoud, S. T., Qamhieh, N. N., El-Maghraby, H. F., & Zeze, D. (2021). Fabrication and characterization of cellulose acetate-based nanofibers and nanofilms for H2S gas sensing application. Carbohydrate Polymers, 258, Article 117643. https://doi.org/10.1016/j.carbpol.2021.117643

• Journal Article Type: Article
• Acceptance Date: Jan 7, 2021
• Online Publication Date: Jan 21, 2021
• Publication Date: Apr 15, 2021
• Deposit Date: May 4, 2021
• Publicly Available Date: Jan 21, 2022
• Journal: Carbohydrate Polymers
• Print ISSN: 0144-8617
• Electronic ISSN: 1879-1344
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 258
• Article Number: 117643
• DOI: https://doi.org/10.1016/j.carbpol.2021.117643
• Public URL: https://durham-repository.worktribe.com/output/1248846