Flower-like MoS2decorated with Cu2O nanoparticles for non-enzymatic amperometric sensing of glucose.
In this study, a novel nanohybrid consisting of flower-like MoS2decorated with Cu2O nanoparticles has been successfully synthesized for non-enzymatic amperometric sensing of glucose. Structural characterizations revealed that Cu2O nanoparticles were highly dispersed on MoS2nanosheets. Electrochemical performances were investigated by cyclic voltammetry (CV) and chronoamperometry. Compared to single Cu2O component, the-synthesized Cu2O/MoS2nanohybrid showed superior electrocatalysis to the oxidation of glucose. The fabricated non-enzymatic amperometric glucose sensor exhibited a wide linear range from 0.01 to 4.0mM with a low detection limit of 1.0µM (S/N =3) and a high sensitivity of 3108.87μAmM-1cm-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 MoS2nanosheets.
College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the Sourth of Henan, Xinyang Normal University, Xinyang, China. Electronic address: flx2857@163.com.
Linxia
L
Fang
College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the Sourth of Henan, Xinyang Normal University, Xinyang, China.
Fan
F
Wang
College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the Sourth of Henan, Xinyang Normal University, Xinyang, China.
Zhenghua
Z
Chen
College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the Sourth of Henan, Xinyang Normal University, Xinyang, China.
Yan
Y
Qiu
College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the Sourth of Henan, Xinyang Normal University, Xinyang, China.
Tianli
T
Zhai
College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the Sourth of Henan, Xinyang Normal University, Xinyang, China.
Mengmeng
M
Hu
College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the Sourth of Henan, Xinyang Normal University, Xinyang, China.
Cuijie
C
Zhang
College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the Sourth of Henan, Xinyang Normal University, Xinyang, China.
Kejing
K
Huang
D001205:Ascorbic Acid / Q000097:blood; D015374:Biosensing Techniques / Q000379:methods*; D003300:Copper / Q000737:chemistry*; D004220:Disulfides / Q000737:chemistry*; D004298:Dopamine / Q000097:blood; D055664:Electrochemical Techniques; D004566:Electrodes; D005947:Glucose / Q000032:analysis*; D006801:Humans; D057230:Limit of Detection; D053768:Metal Nanoparticles / Q000737:chemistry*; D008982:Molybdenum / Q000737:chemistry*; D015203:Reproducibility of Results; D014527:Uric Acid / Q000097:blood
D004220:Disulfides; D014527:Uric Acid; D003300:Copper; D008982:Molybdenum; D005947:Glucose; D001205:Ascorbic Acid; C000520:cuprous oxide; D004298:Dopamine; C082964:molybdenum disulfide
Cuprous oxide; Glucose; Molybdenum disulfide; Non-enzymatic amperometric sensing