Graphene/nano-ZnO hybrid materials modify Ni-foam for high-performance electrochemical glucose sensors
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The detection of glucose has been attracting more and more attention. The present work provided a novel glucose sensor based on graphene/zinc oxide nanoparticle nanocomposite modified Ni foam to fabricate an electrode (G-ZnO/Ni foam). The structure and morphology of the electrode were characterized by SEM, XPS, and XRD. And the electrochemical performance of G-ZnO/Ni foam electrode was evaluated using cyclic voltammetry (CV) and amperometry analysis. The resulting electrode exhibited excellent electrocatalytic activity toward the reduction of glucose in a linear range of 50–1000 μmol with a correlation coefficient of 0.986. The sensitivity of the graphene/zinc oxide nanocomposite modified Ni foam sensor was 1635.52 μA mM−1 cm−2. It is has better electrochemical performance for glucose and is promising in high-sensitivity detection of glucose applications.
KeywordsGraphene ZnO nanoparticle Ni foam Glucose sensor
This work was jointly supported by the postdoctoral scientific research developmental fund of Heilongjiang Province (grant nos. LBH-Q15142, LBH-Q14157), Science and Technology Project of Qiqihar (grant nos. GYGG-201409, GYGG-201619), National Natural Science Foundation of China (21404064), Natural Science Foundation of Heilongjiang Province of China (LC2016022), The Fundamental Research Funds in Heilongjiang Provincial Universities (135106244), University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province (UNPYSCT-2016089), and Scientific Research Foundation for the Returned Overseas Chinese Scholars in Heilongjiang Province.
- 13.Qianqian J, Huiming J, Ying Z, Yalu C, Xiaohong S, Zhengguo J (2014) Rapid and selective detection of acetone using hierarchical ZnO gas sensor for hazardous odor markers application. J Hazard Mater 276(9):262Google Scholar
- 14.Zhuo K, Yousong G, Xiaoqin Y, Zhiming B, Yichong L, Shuo L et al (2015) Enhanced photoelectrochemical property of ZnO nanorods array synthesized on reduced graphene oxide for self-powered biosensing application. Biosens Bioelectron 64(64C):499–504Google Scholar
- 15.Kang Z, Li Y, Cao S, Zhang Z, Guo H, Wu P, Zhou L, Zhang S, Zhang X, Zhang Y (2017) 3D graphene foam/ZnO nanorods array mixed-dimensional heterostructure for photoelectrochemical biosensing. Inorg Chem Front 2018(5):364–369Google Scholar
- 16.Zhao X, Zhang P, Chen Y, Su Z, Wei G (2015) Recent advances in the fabrication and structure-specific applications of graphene-based inorganic hybrid membranes. Nano 7:5080–5093Google Scholar
- 22.Li D, Zhang W, Yu X, Wang Z, Su Z, Wei G (2016) When biomolecules meet graphene: from molecular level interactions to material design and applications. Nano 8:19491–19509Google Scholar