UV irradiation synthesis of an Au–graphene nanocomposite with enhanced electrochemical sensing properties

2013 ◽  
Vol 1 (32) ◽  
pp. 9189 ◽  
Author(s):  
Ping Wang ◽  
Zhong-Gang Liu ◽  
Xing Chen ◽  
Fan-Li Meng ◽  
Jin-Huai Liu ◽  
...  
Keyword(s):  
Uv Irradiation ◽  
Electrochemical Sensing ◽  
Sensing Properties ◽  
Graphene Nanocomposite

Hydrothermal preparation and electrochemical sensing properties of TiO2–graphene nanocomposite

2011 ◽  
Vol 83 (1) ◽  
pp. 78-82 ◽  
Author(s):  
Yang Fan ◽  
Hai-Ting Lu ◽  
Jin-Hang Liu ◽  
Chun-Peng Yang ◽  
Qiang-Shan Jing ◽  
...  
Keyword(s):  
Electrochemical Sensing ◽  
Hydrothermal Preparation ◽  
Sensing Properties ◽  
Graphene Nanocomposite

A green method to gold–graphene nanocomposite from cyclodextrin functionalized graphene for efficient non-enzymatic electrochemical sensing applications

RSC Advances ◽  
2015 ◽  
Vol 5 (40) ◽  
pp. 32027-32033 ◽  
Author(s):  
R. Aswathi ◽  
Mohamed Mukthar Ali ◽  
Anurudha Shukla ◽  
K. Y. Sandhya
Keyword(s):  
Gold Nanoparticle ◽  
Electrochemical Sensing ◽  
Functionalized Graphene ◽  
Green Method ◽  
Sensing Properties ◽  
Sensing Applications ◽  
Graphene Nanocomposite

Here, we report a new and green method of synthesis of gold nanoparticle functionalized graphene (Au–Gr) from β-cyclodextrin functionalized Gr (CD–Gr) with excellent electrochemical sensing properties.

scholarly journals Biomolecules Electrochemical Sensing Properties of a PMo11V@N-Doped Few Layer Graphene Nanocomposite

Inorganics ◽  
2015 ◽  
Vol 3 (2) ◽  
pp. 178-193 ◽  
Author(s):  
Diana Fernandes ◽  
Marta Nunes ◽  
Ricardo Carvalho ◽  
Revathi Bacsa ◽  
Israel-Martyr Mbomekalle ◽  
...  
Keyword(s):  
Electrochemical Sensing ◽  
Sensing Properties ◽  
Layer Graphene ◽  
Graphene Nanocomposite ◽  
Few Layer Graphene

Deposition temperature and UV irradiation effects on the H2S sensing properties of Te thin films

2015 ◽  
Vol 119 (2) ◽  
pp. 659-665
Author(s):  
M. Manouchehrian ◽  
M. M. Larijani ◽  
S. M. Elahi ◽  
M. A. Moghri Moazzen
Keyword(s):  
Thin Films ◽  
Uv Irradiation ◽  
Deposition Temperature ◽  
Irradiation Effects ◽  
Sensing Properties

A facile synthesis of novel polyaniline/graphene nanocomposite thin films for enzyme-free electrochemical sensing of hydrogen peroxide

2021 ◽  
Author(s):  
Swati Verma ◽  
Dipendra Singh Mal ◽  
Paulo R. Oliveira ◽  
Bruno Campos Janegitz ◽  
Jai Prakash ◽  
...  
Keyword(s):  
Thin Films ◽  
Hydrogen Peroxide ◽  
Small Molecules ◽  
Present Article ◽  
Electrochemical Method ◽  
Electrochemical Sensing ◽  
Facile Synthesis ◽  
Nanocomposite Thin Films ◽  
Graphene Nanocomposite

Electrochemical method is the most effective, facile, and economical approach for the detection of small molecules. The present article deals with design and engineering of polymer-graphene based thin films through...

UV-enhanced NO2 sensor using ZnO quantum dots sensitized SnO2 porous nanowires

2022 ◽  
Author(s):  
Tianchen Jiang ◽  
xin liu ◽  
jianbo sun
Keyword(s):  
Quantum Dots ◽  
Gas Sensor ◽  
Uv Irradiation ◽  
Gas Sensing ◽  
Complex Impedance ◽  
Sensing Properties ◽  
Sensing Mechanism ◽  
No2 Sensor ◽  
Zno Quantum Dots ◽  
Uv Excitation

Abstract ZnO quantum dots sensitized SnO2 porous nanowires were fabricated and designed for UV excitation gas sensor. The ZnO/SnO2 composite (SZQ1%) with the molar proportion of 1:100 exhibits excellent sensing properties to NO2 gas under UV irradiation at 40oC. The humidity stability of SZQ1% was also measured and discussed by DC reversed circuit and complex impedance curves. The gas sensing mechanism is well discussed and illustrated to the ZnO quantum dots sensitized and the increased photo-generated carriers under UV irradiation.

scholarly journals Morphology–Dependent Electrochemical Sensing Properties of Iron Oxide–Graphene Oxide Nanohybrids for Dopamine and Uric Acid

Nanomaterials ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 835 ◽  
Author(s):  
Zhaotian Cai ◽  
Yabing Ye ◽  
Xuan Wan ◽  
Jun Liu ◽  
Shihui Yang ◽  
...  
Keyword(s):  
Uric Acid ◽  
Graphene Oxide ◽  
Iron Oxide ◽  
Electrocatalytic Activity ◽  
Electrochemical Impedance ◽  
Simultaneous Detection ◽  
Electrochemical Sensing ◽  
Electrochemical Performances ◽  
Hydrothermal Route ◽  
Sensing Properties

Various morphologies of iron oxide nanoparticles (Fe2O3 NPs), including cubic, thorhombic and discal shapes were synthesized by a facile meta-ion mediated hydrothermal route. To further improve the electrochemical sensing properties, discal Fe2O3 NPs with the highest electrocatalytic activity were coupled with graphene oxide (GO) nanosheets. The surface morphology, microstructures and electrochemical properties of the obtained Fe2O3 NPs and Fe2O3/GO nanohybrids were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques. As expected, the electrochemical performances were found to be highly related to morphology. The discal Fe2O3 NPs coupled with GO showed remarkable electrocatalytic activity toward the oxidation of dopamine (DA) and uric acid (UA), due to their excellent synergistic effect. The electrochemical responses of both DA and UA were linear to their concentrations in the ranges of 0.02–10 μM and 10–100 μM, with very low limits of detection (LOD) of 3.2 nM and 2.5 nM for DA and UA, respectively. Moreover, the d-Fe2O3/GO nanohybrids showed good selectivity and reproducibility. The proposed d-Fe2O3/GO/GCE realized the simultaneous detection of DA and UA in human serum and urine samples with satisfactory recoveries.

Hydrothermal synthesis and electrochemical sensing properties of copper vanadate nanocrystals with controlled morphologies

2017 ◽  
Vol 27 (5) ◽  
pp. 1105-1116 ◽  
Author(s):  
Gui-hong HAN ◽  
Shu-zhen YANG ◽  
Yan-fang HUANG ◽  
Jing YANG ◽  
Wen-cui CHAI ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Electrochemical Sensing ◽  
Sensing Properties ◽  
Copper Vanadate
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