期刊
TALANTA
卷 167, 期 -, 页码 593-599出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2017.03.008
关键词
Cuprous oxide; Molybdenum disulfide; Glucose; Non-enzymatic amperometric sensing
资金
- Nanhu Scholars Program for Young Scholars of XYNU
- Science and technology project of Henan Province [162102310122]
- National Natural Science Foundation of China [U1304214, 21475115]
- Program for University Innovative Research Team of Henan [15IRTSTHN001]
In this study, a novel nanohybrid consisting of flower-like MoS2 decorated with Cu2O nanoparticles has been successfully synthesized for non-enzymatic amperometric sensing of glucose. Structural characterizations revealed that Cu2O nanoparticles were highly dispersed on MoS2 nanosheets. Electrochemical performances were investigated by cyclic voltammetry (CV) and chronoamperometry. Compared to single Cu2O component, the-synthesized Cu2O/MoS2 nanohybrid showed superior electrocatalysis to the oxidation of glucose. The fabricated non-enzymatic amperometric glucose sensor exhibited a wide linear range from 0.01 to 4.0 mM with a low detection limit of 1.0 mu M (S/N =3) and a high sensitivity of 3108.87 mu A mM(-1) cm(-2). Meanwhile, the non enzymatic sensor also possesses satisfactory stability, good reproducibility and high selectivity to interfering components of uric acid, dopamine and ascorbic acid. The excellent analytical performances are resulted from the synergistic effect provided by the Cu2O nanoparticals and MoS2 nanosheets.
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