Abstract
In this paper, carbon nanotubes (CNTs) were functionalized by acid treatment and further functionalized with dodecylamine and were designated as CNT-carboxylic and CNT-amide, respectively. Then, functionalized CNTs produced were characterized with various methods to verify the attachment of a functional group. Performance of the functionalized CNTs in the detection of benzene gas was monitored at room temperature. The sample was dropped cast on the interdigitated transducer (IDT), and the changes in resistivity were recorded by a digital multimeter in a customized chamber under controlled humidity (∼55%) environment. Based on the findings, it showed that the functionalized CNTs provide an extra active area for interaction between the gas analyte and CNTs, thus increasing their response and improving the sensitivity of the sensing material.
Highlights
Benzene, C6H6, is an important organic chemical compound that consists of six carbon atoms each bonded covalently with one hydrogen atom
The functionalized carbon nanotubes (CNTs) were treated with sulphonitric mixture [24] and used as reaction precursor for amide functionalization by using dodecylamine as the functionalizing reactant. e surface morphology of the CNTs before and after functionalizing was examined by field emission-scanning electron microscopy attachment with energy dispersive X-Ray analysis (FESEM-EDX), and functional group attachment was confirmed by using Fourier TransformInfrared spectroscopy (FT-IR). en, the potential of the functionalized CNTs in the detection of benzene gas compared to the pristine CNTs and the effect of functionalization were studied by observing the changes in the resistivity of CNTs when exposed to benzene gas
The functionalized CNTs are more aligned and dense caused by insertion of a new functional group [26]
Summary
Effect of Functionalized Carbon Nanotubes in the Detection of Benzene at Room Temperature. Nurjahirah Janudin ,1 Norli Abdullah, Wan Md Zin Wan Yunus, Faizah Md Yasin, Mohd Hanif Yaacob, Norshafiqah Mohamad Saidi, and Noor Azilah Mohd Kasim 1. Carbon nanotubes (CNTs) were functionalized by acid treatment and further functionalized with dodecylamine and were designated as CNT-carboxylic and CNT-amide, respectively. En, functionalized CNTs produced were characterized with various methods to verify the attachment of a functional group. Performance of the functionalized CNTs in the detection of benzene gas was monitored at room temperature. It showed that the functionalized CNTs provide an extra active area for interaction between the gas analyte and CNTs, increasing their response and improving the sensitivity of the sensing material
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
