TY - JOUR
T1 - Fabrication and characterization of cellulose acetate-based nanofibers and nanofilms for H2S gas sensing application
AU - Abdel Rahman, Nour S.
AU - Greish, Yaser E.
AU - Mahmoud, Saleh T.
AU - Qamhieh, Naser N.
AU - El-Maghraby, Hesham F.
AU - Zeze, Dagou
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/4/15
Y1 - 2021/4/15
N2 - 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.
AB - 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.
KW - Acetone
KW - Cellulose acetate
KW - Dimethyl acetamide
KW - Glycerol
KW - HS sensor
KW - Organic-inorganic hybrid nanocomposites
KW - Polypyrrole
KW - Tungsten oxide
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U2 - 10.1016/j.carbpol.2021.117643
DO - 10.1016/j.carbpol.2021.117643
M3 - Article
C2 - 33593537
AN - SCOPUS:85099851566
SN - 0144-8617
VL - 258
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
M1 - 117643
ER -