One-step electrodeposition of graphene loaded nickel oxides nanoparticles for acetaminophen detection
作者： Gui-Ting Liu , Hui-Fen Chen , Guo-Ming Lin , Ping-ping Ye , Xiao-Ping Wang
DOI: 10.1016/J.BIOS.2014.01.005
关键词: Graphene 、 Non-blocking I/O 、 Differential pulse voltammetry 、 Raman spectroscopy 、 Inorganic chemistry 、 Nanoparticle 、 Electrochemical gas sensor 、 Electrode 、 Cyclic voltammetry 、 Materials science 、 Biotechnology 、 Biophysics 、 Electrochemistry 、 Biomedical engineering 、 General Medicine
摘要: Abstract An electrochemical sensor of acetaminophen (AP) based on electrochemically reduced graphene (ERG) loaded nickel oxides (Ni2O3–NiO) nanoparticles coated onto glassy carbon electrode (ERG/Ni2O3–NiO/GCE) was prepared by a one-step electrodeposition process. The as-prepared characterized scanning electron microscopy, X-ray photoelectron spectroscopy and Raman spectroscopy. electrocatalytic properties ERG/Ni2O3–NiO modified toward the oxidation were analyzed via cyclic voltammetry (CV) differential pulse (DPV). electrodes Ni2O3–NiO/GCE, ERG/GCE, Ni2O3–NiO deposited ERG/GCE fabricated for comparison catalytic mechanism understanding. studies showed that ERG/Ni2O3–NiO/GCE displayed highest electro-catalytic activity, attributing to synergetic effect derived from unique composite structure physical graphene. low detection limit 0.02 μM (S/N=3) with wide linear range 0.04 μM 100 μM (R=0.998) obtained. resulting successfully used detect in commercial pharmaceutical tablets urine samples.
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