Sensitivity Enhancement of Benzene Sensor Using Ethyl Cellulose-Coated Surface-Functionalized Carbon Nanotubes
Joint Authors
Charinpanitkul, Tawatchai
Wongwiriyapan, Winadda
Chobsilp, Thanattha
Muangrat, Worawut
Issro, Chaisak
Chaiwat, Weerawut
Eiad-ua, Apiluck
Suttiponparnit, Komkrit
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-20
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
A hybrid sensor based on the integration of functionalized multiwalled carbon nanotubes (MWCNTs) with ethyl cellulose (EC) was fabricated for sensitivity enhancement of benzene detection.
To functionalize the surface of MWCNTs, MWCNTs were treated with hydrochloric acid for 60 min (A60-MWCNTs), while other MWCNTs were treated with oxygen plasma for 30, 60, 90, and 120 min (P30-MWCNTs, P60-MWCNTs, P90-MWCNTs, and P120-MWCNTs, resp.).
Pristine MWCNTs, A-MWCNTs, and P-MWCNTs were dispersed in 1,2-dichloroethane, then dropped onto a printed circuit board consisting of Cu/Au electrodes used as the sensor platform.
Next, EC was separately spin coated on the pristine MWCNTs, A-MWCNTs, and P-MWCNTs (EC/MWCNTs, EC/A-MWCNTs, and EC/P-MWCNTs, resp.).
All sensors responded to benzene vapor at room temperature by increasing their electrical resistance which was sensitive to benzene vapor.
The EC/P90-MWCNTs enabled an approximately 11-fold improvement in benzene detection compared to EC/MWCNTs.
The sensitivity of all sensors would be attributed to the swelling of EC, resulting in the loosening of the MWCNT network after benzene vapor exposure.
The differences of the sensing responses of the EC/MWCNTs, EC/A-MWCNTs, and EC/P-MWCNTs would be ascribed to the differences in crystallinity and functionalization of MWCNT sidewalls, suggesting that acid and oxygen plasma treatments of MWCNTs would be promising techniques for the improvement of benzene detection.
American Psychological Association (APA)
Chobsilp, Thanattha& Muangrat, Worawut& Issro, Chaisak& Chaiwat, Weerawut& Eiad-ua, Apiluck& Suttiponparnit, Komkrit…[et al.]. 2018. Sensitivity Enhancement of Benzene Sensor Using Ethyl Cellulose-Coated Surface-Functionalized Carbon Nanotubes. Journal of Sensors،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1201904
Modern Language Association (MLA)
Chobsilp, Thanattha…[et al.]. Sensitivity Enhancement of Benzene Sensor Using Ethyl Cellulose-Coated Surface-Functionalized Carbon Nanotubes. Journal of Sensors No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1201904
American Medical Association (AMA)
Chobsilp, Thanattha& Muangrat, Worawut& Issro, Chaisak& Chaiwat, Weerawut& Eiad-ua, Apiluck& Suttiponparnit, Komkrit…[et al.]. Sensitivity Enhancement of Benzene Sensor Using Ethyl Cellulose-Coated Surface-Functionalized Carbon Nanotubes. Journal of Sensors. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1201904
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1201904