Facile synthesis of 3D porous nitrogen-doped graphene as an efficient electrocatalyst for adenine sensing

RSC Advances ◽  
2016 ◽  
Vol 6 (37) ◽  
pp. 31565-31573 ◽  
Author(s):  
Junhua Li ◽  
Jianbo Jiang ◽  
Haibo Feng ◽  
Zhifeng Xu ◽  
Siping Tang ◽  
...  

We demonstrate a simple, low-cost and eco-friendly strategy for the convenient preparation of three-dimensional porous nitrogen-doped graphene (3D-N-GN) for the highly sensitive detection of adenine.

RSC Advances ◽  
2016 ◽  
Vol 6 (9) ◽  
pp. 7198-7211 ◽  
Author(s):  
Hadi Tabani ◽  
Kamal Khodaei ◽  
Siyavash Kazemi Movahed ◽  
Ali Zeraatkar Moghaddam ◽  
Farzaneh Dorabadi Zare ◽  
...  

A simple and highly sensitive method that involves SPE-GC with three dimensional high nitrogen doped graphene as a novel sorbent used for determination of BTEX compounds in environmental samples.


The Analyst ◽  
2021 ◽  
Author(s):  
Huan Lu ◽  
Hanyue Cui ◽  
Dingding Duan ◽  
Li Li ◽  
Yaping Ding

An efficiently prepared innovative electrochemical sensor based on Mo2C-embedded N-GOQDs (N-GOQDs–Mo2C) and a molecularly imprinted polymer showed a highly sensitive detection performance for indometacin within a relatively wide linear range.


Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3121
Author(s):  
Hosna Ghanbarlou ◽  
Nikoline Loklindt Pedersen ◽  
Morten Enggrob Simonsen ◽  
Jens Muff

The synergy between electrochemical oxidation and adsorption on particle electrodes was investigated in three-dimensional (3D) systems for p-nitrosodimethylaniline (RNO) decolorization and pesticide removal. A comparison was made between granular activated carbon (GAC) and a novel synthesized nitrogen-doped graphene-based particle electrode (NCPE). Experiments on RNO decolorization show that the synergy parameter of the 3D-NCPE system was improved 3000 times compared to the studied 3D-GAC system. This was due to the specific nanostructure and composition of the NCPE material. Nitrogen-doped graphene triggered an oxygen reduction reaction, producing hydrogen peroxide that simultaneously catalyzed on iron sites of the NCPEs to hydroxyl radicals following the electro-Fenton (EF) process. Data showed that in the experimental setup used for the study, the applied cell voltage required for the optimal value of the synergy parameter could be lowered to 5V in the 3D-NCPEs process, which is significantly better than the 15–20 V needed for synergy to be found in the 3D-GAC process. Compared to previous studies with 3D-GAC, the removal of pesticides 2,6 dichlorobenzamide (BAM), 2-methyl-4-chlorophenoxyaceticacid (MCPA), and methylchlorophenoxypropionic acid (MCPP) was also enhanced in the 3D-NCPE system.


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