Photo-assisted Amperometric Acetone Sensing of PVP/WO3 Hybrid Nanofibers
File version
Author(s)
Motta, N
Tesfamichael, T
Sonar, P
Alaudeen Abdul Haroon Rashid, SS
Sabri, Y
Shafiei, M
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
Size
File type(s)
Location
Montreal, Canada
License
Abstract
PVP/WO3 hybrid nanofibers (NFs) are synthesized by embedding n-type semiconducting metal oxide WO3 nanoparticles (90-120 nm) in PVP NFs using electrospinning and their amperometric response is evaluated towards different concentrations of acetone. Material and structural properties of the PVP/WO3 hybrid NFs are characterized using SEM, FTIR, Raman and XPS. Amperometric responses of the PVP/WO3 hybrid NFs are investigated toward acetone as a function of bias voltages (3-7 V) without and with UV irradiation. The maximum response (1.42 μA) was obtained at 7 V bias voltage for 12.5 ppm of acetone at operating temperature of 350 under photoexcitation with a rapid response/recovery time of 18s/42s. Detection of acetone down to 7 ppb at 7 V bias voltage under photo-activation is calculated. A possible sensing mechanism is also explained.
Journal Title
Conference Title
Proceedings of IEEE Sensors
Book Title
Edition
Volume
2019-October
Issue
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
Item Access Status
Note
Access the data
Related item(s)
Subject
Atomic, molecular and optical physics
Persistent link to this record
Citation
Imran, M; Motta, N; Tesfamichael, T; Sonar, P; Alaudeen Abdul Haroon Rashid, SS; Sabri, Y; Shafiei, M, Photo-assisted Amperometric Acetone Sensing of PVP/WO3 Hybrid Nanofibers, Proceedings of IEEE Sensors, 2019, 2019-October