期刊
ANALYTICAL METHODS
卷 9, 期 2, 页码 338-344出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ay02814d
关键词
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资金
- Program for Innovative Research Team (in Science and Technology) in the University of Henan Province [15IRTSTHN019]
- National Natural Science Foundation of China [31370147]
Here, gold/Ni(OH)(2) nanocomposites supported on reduced graphene oxide (Au/Ni(OH)(2)/rGO) were synthesized by a one-step wet-chemical method, which were characterized by TEM, IR, SEM, XPS and XRD techniques. The experiments demonstrated that the as-prepared nanocomposites showed a collection of unique characteristics, for example, high loading and homogeneous distribution. The nanocomposite modified electrode was prepared based on a glassy carbon substrate, which possessed excellent electrocatalytic activity to the redox reaction of catechol (CC). Under optimal conditions, the concentration of CC showed a linear relationship with its response current from 0.4 mu M to 33.8 mu M with a detection limit (S/N = 3) of 0.13 mu M. The proposed sensor was successfully applied to detect CC in water with satisfactory results, which exhibited excellent selectivity and sensitivity, with potential applications.
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