NDLI: A glassy carbon electrode modified with β-cyclodextin, multiwalled carbon nanotubes and graphene oxide for sensitive determination of 1,3-dinitrobenzene

Content Provider	Springer Nature Link
Author	Li, Junhua Feng, Haibo Feng, Yonglan Liu, Jinlong Liu, Youcai Jiang, Jianbo Qian, Dong
Copyright Year	2014
Abstract	We are presenting a host-guest electrochemical platform for sensing the pollutant 1,3-dinitrobenzene. The method is based on the use of a glassy carbon electrode (GCE) covered with a composite made from multiwalled carbon nanotubes and graphene oxide, and functionalized with β-cyclodextrin (β-CD). The resultant composite was characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis and electrochemical techniques. The modified GCE was used for the sensitive detection of 1,3-dinitrobenzene (DNB) at working voltages of −355 mV and −483 mV. Due to the specific recognition property of β-CD and the excellent electronic properties of the carbon nanomaterials, the electrode exhibits outstanding supramolecular recognition and enhanced electrochemical response to DNB compared to more conventional electrodes. Under optimum conditions, the peak currents vary linearly with the DNB concentrations in the range from 0.02 to 30.0 μM, and the detection limit is 5.0 nM (at an S/N of 3). The electrode exhibits long-term stability and has been successfully applied to the determination of DNB in spiked soil and water samples. Figure A host-guest electrochemical sensor was fabricated based on β-cyclodextrin functionalized multiwalled carbon nanotubes/graphene oxide composite. The prepared sensor shows better electrocatalytic performances and was successfully applied to detect 1,3-dinitrobenzene in soil and groundwater with satisfactory result
Starting Page	1369
Ending Page	1377
Page Count	9
File Format	PDF
ISSN	00263672
Journal	Microchimica Acta
Volume Number	181
Issue Number	11-12
e-ISSN	14365073
Language	English
Publisher	Springer Vienna
Publisher Date	2014-05-02
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Electrochemical sensor β-cyclodextrin Graphene oxide Carbon nanotubes 1,3-dinitrobenzene Nanochemistry Nanotechnology Characterization and Evaluation of Materials Analytical Chemistry Microengineering
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry

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