Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 9, Issue 14, Pages 12453-12460Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b00546
Keywords
ZnO nanorod; carbon cloth; electrochemical sensor; simultaneous detection; dihydroxybenzene isomers
Funding
- NNSF of China [61525402]
- Key University Science Research Project of Jiangsu Province [15KJA430006]
- Program for New Century Excellent Talents in University [NCET-13-0853]
- QingLan Project
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Herein, ZnO nanorods with an average diameter of 50 nm were uniformly anchored on the surface of carbon cloth directly by a simple hydrothermal method. The nanorods growing in situ along the specific direction of (002) have single crystalline features and a columnar structure. On the basis of the ZnO nanorod/carbon cloth composite, free-standing electrodes were fabricated for the simultaneous determination of dihydroxybenzene isomers. The ZnO nanorod/carbon cloth electrodes exhibited excellent electrochemical stability, high sensitivity, and high selectivity. The linear ranges of concentration for hydroquinone, catechol, and resorcinol were 2-30, 2-45, and 2-385 mu M, respectively, and the corresponding limits of detection (S/N = 3) were 0.57, 0.81, and 7.2 mu M. The outstanding sensing properties of ZnO/carbon cloth electrodes have a great promise for the development of free-standing biosensors and other electrochemical devices.
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