A facile one-pot synthesis of carbon nitride dots–reduced graphene oxide nanocomposites for simultaneous enhanced detecting of dopamine and uric acid

The Analyst ◽  
2016 ◽  
Vol 141 (15) ◽  
pp. 4757-4765 ◽  
Author(s):  
Ziyin Yang ◽  
Xiaohui Zheng ◽  
Zhi Li ◽  
Jianbin Zheng
Keyword(s):  
Uric Acid ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Carbon Nitride ◽  
Electrochemical Determination ◽  
Facile Synthesis ◽  
One Pot ◽  
One Pot Synthesis ◽  
Reduced Graphene

In this study, we described the facile synthesis of carbon nitride dots–reduced graphene oxide nanocomposites (CNDs–rGO) and their application for the enhanced electrochemical determination of dopamine (DA) and uric acid (UA).

One-pot synthesis of a CdS-reduced graphene oxide–carbon nitride composite for self-powered photoelectrochemical aptasensing of PCB72

Nanoscale ◽  
2019 ◽  
Vol 11 (13) ◽  
pp. 5982-5988 ◽  
Author(s):  
Mengjun Sun ◽  
Ruizhen Li ◽  
Jingdong Zhang ◽  
Kai Yan ◽  
Min Liu
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Carbon Nitride ◽  
Selective Detection ◽  
One Pot ◽  
One Pot Synthesis ◽  
Reduced Graphene ◽  
Self Powered

We synthesized a CdS–rGO–C3N4 nanocomposite with enhanced photoelectrochemical (PEC) performance to construct a self-powered PEC aptasensor for sensitive and selective detection of PCB72.

scholarly journals Facile Synthesis of MnO2 Nanoflowers/N-Doped Reduced Graphene Oxide Composite and Its Application for Simultaneous Determination of Dopamine and Uric Acid

Nanomaterials ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 847 ◽  
Author(s):  
Xuan Wan ◽  
Shihui Yang ◽  
Zhaotian Cai ◽  
Quanguo He ◽  
Yabing Ye ◽  
...  
Keyword(s):  
Uric Acid ◽  
Graphene Oxide ◽  
Simultaneous Determination ◽  
Reduced Graphene Oxide ◽  
Anodic Peak ◽  
Electrochemical Performances ◽  
Facile Synthesis ◽  
Transfer Resistance ◽  
Reduced Graphene

This study reports facile synthesis of MnO2 nanoflowers/N-doped reduced graphene oxide (MnO2NFs/NrGO) composite and its application on the simultaneous determination of dopamine (DA) and uric acid (UA). The microstructures, morphologies, and electrochemical performances of MnO2NFs/NrGO were studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS), respectively. The electrochemical experiments showed that the MnO2NFs/NrGO composites have the largest effective electroactive area and lowest charge transfer resistance. MnO2NFs/NrGO nanocomposites displayed superior catalytic capacity toward the electro-oxidation of DA and UA due to the synergistic effect from MnO2NFs and NrGO. The anodic peak currents of DA and UA increase linearly with their concentrations varying from 0.2 μM to 6.0 μM. However, the anodic peak currents of DA and UA are highly correlated to the Napierian logarithm of their concentrations ranging from 6.0 μM to 100 μM. The detection limits are 0.036 μM and 0.029 μM for DA and UA, respectively. Furthermore, the DA and UA levels of human serum samples were accurately detected by the proposed sensor. Combining with prominent advantages such as facile preparation, good sensitivity, and high selectivity, the proposed MnO2NFs/NrGO nanocomposites have become the most promising candidates for the simultaneous determination of DA and UA from various actual samples.

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