Electrocatalitic Behavior of Nitrophenol Isomers at α-Cyclodextrin Incorporated Carbon Nanotubes-coated Electrode

Abstract

Abstract: In this article, based on providing a new interfacial architecture that involves carbon nanotubes (CNT) and a-cyclodextrin(a-CD), we constructed a novel modified electrode by casting a-CDincorporated carbon nanotubes on the graphite surface to form a functional stereoscopic interfacial layer. The modified electrodes first showed a favorable behavior toward the reduction of nitrophenol isomers. The attractiveness of this modified electrode is the capitalization on the best properties of the two components of the system, such as the electronic and catalytic properties of the CNT and the molecular recognition ability of the a-CD. The selective determination of p-nitrophenol could be obtained by the separation of its reductive peak from that of other nitophenol isomers. Adifferent pulse voltammetric technique for measurement of p-nitrophenol over the range of 1 × 10^-6to 3 × 10^-4mol/Lhas been developed. The detection limit was 2×10^-7mol/L.

Key words: Carbon nanotube, a-Cyclodextrin, Modified electrode, Nitrophenol isomers, Electrocatalytic behavior

CLC Number:

O657

TrendMD:

WANG Zong-Hua, LUO Guo-An, XIAO Su-Fang, WANG Ge-Yun. Electrocatalitic Behavior of Nitrophenol Isomers at α-Cyclodextrin Incorporated Carbon Nanotubes-coated Electrode[J]. Chem. J. Chinese Universities, 2003, 24(5): 811.

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Electrocatalitic Behavior of Nitrophenol Isomers at α-Cyclodextrin Incorporated Carbon Nanotubes-coated Electrode

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