Enhanced electrochemical sensitivity towards plasticizer determination based on ferrocene- end-cap dendrimer functionalized graphene oxide electrochemical sensor

2019 ◽  
Vol 288 ◽  
pp. 476-485 ◽  
Author(s):  
Fengjuan Xiao ◽  
Xinrui Yan ◽  
Hongli Li ◽  
Cheng Qian ◽  
Song Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

Nonenzymatic electrochemical sensor based on imidazole-functionalized graphene oxide for progesterone detection

2018 ◽  
Vol 112 ◽  
pp. 108-113 ◽  
Author(s):  
Ava Gevaerd ◽  
Sirlon F. Blaskievicz ◽  
Aldo J.G. Zarbin ◽  
Elisa S. Orth ◽  
Márcio F. Bergamini ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

scholarly journals An Electrochemical Sensor Based on Gold and Bismuth Bimetallic Nanoparticles Decorated L-Cysteine Functionalized Graphene Oxide Nanocomposites for Sensitive Detection of Iron Ions in Water Samples

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2386
Author(s):  
Na Zhou ◽  
Jing Li ◽  
Shaoxia Wang ◽  
Xuming Zhuang ◽  
Shouqing Ni ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Photoelectron Spectroscopy ◽  
Bimetallic Nanoparticles ◽  
Functionalized Graphene ◽  
X Ray Diffraction ◽  
Functionalized Graphene Oxide ◽  
Glassy Carbon Electrodes ◽  
X Ray ◽  
Seawater Samples

In this work, gold and bismuth bimetallic nanoparticles decorated L-cysteine functionalized graphene oxide nanocomposites (Au-BiNPs/SH-GO) were prepared and applied to selective detection of Fe(III) in lake and seawater samples by modifying onto glassy carbon electrodes. Bimetallic nanoparticles have various excellent properties and better catalytic properties because of the unique synergistic effect between metals. The modified electrode was characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and Raman spectroscopy. Under optimized conditions, current peak intensity increased linearly with increasing Fe(III) concentration over the range of 0.2–50 μM and a detection limit of 0.07 μM (S/N = 3). The Au-BiNPs/SH-GO/GCE was used for the determination of Fe(III) in lake and seawater samples with recoveries ranged from 90 to 103%. Those satisfactory results revealed the potential application of the Au-BiNPs/SH-GO electrochemical sensor for heavy metals detection in environmental monitoring.

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