Functionalized carbon nanotubes as sensitive materials for electrochemical detection of ultra-trace 2,4,6-trinitrotoluene

doi:10.1039/b604587c

CORC > 化学研究所 > 中国科学院化学研究所

	Functionalized carbon nanotubes as sensitive materials for electrochemical detection of ultra-trace 2,4,6-trinitrotoluene
	Zhang, Hong-Xia ; Hu, Jin-Song ; Yan, Cun-Ji ; Jiang, Li ; Wan, Li-Jun
刊名	PHYSICAL CHEMISTRY CHEMICAL PHYSICS
	2006
卷号	8 期号:30 页码:3567-3572
ISSN号	1463-9076
DOI	10.1039/b604587c
英文摘要	This report demonstrates a novel electrochemical method for fast and sensitive detection of ultratrace 2,4,6-trinitrotoluene (TNT) based on modified electrodes by functionalized MWCNTs. To fabricate new kind of functionalized MWCNTs material sensitive to TNT, our work first theoretically investigated the interaction between triphenylene (TP) and TNT by calculating their electrostatic potentials, and secondly characterized this interaction by the fluorescence spectra. The functionalized MWCNTs of TP-MWCNTs were thoroughly characterized by fluorescence and UV-visible spectra, and by analysing these results, the interaction between TP and MWCNTs was also examined. Electrochemical experiment suggests, compared to MWCNTs- and TP-modified electrodes, TP-MWCNTs-modified electrodes result in both fast response and enhanced sensitivity to TNT detection. These results show the attachment of TP on MWCNTs leads to better sensing unit with more receptor site to TNT, associated with the coordinative recognition of TP and MWCNTs to TNT, finally result in the improvement of response and sensitivity. And this improved recognition process is attributed to the geometric and electrostatic complementarity between TP and TNT. The present study demonstrates TP-MWCNTs-modified electrode holds promising and important implications for the detection of ultra-trace TNT.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000239313600013
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/60093]
专题	中国科学院化学研究所
通讯作者	Zhang, Hong-Xia
作者单位	1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China 2.Schlumberger Doll Res Ctr, Ridgefield, CT USA 3.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hong-Xia,Hu, Jin-Song,Yan, Cun-Ji,et al. Functionalized carbon nanotubes as sensitive materials for electrochemical detection of ultra-trace 2,4,6-trinitrotoluene[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2006,8(30):3567-3572.
APA	Zhang, Hong-Xia,Hu, Jin-Song,Yan, Cun-Ji,Jiang, Li,&Wan, Li-Jun.(2006).Functionalized carbon nanotubes as sensitive materials for electrochemical detection of ultra-trace 2,4,6-trinitrotoluene.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,8(30),3567-3572.
MLA	Zhang, Hong-Xia,et al."Functionalized carbon nanotubes as sensitive materials for electrochemical detection of ultra-trace 2,4,6-trinitrotoluene".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 8.30(2006):3567-3572.