scholarly journals Gram-scale synthesis of nitrogen doped graphene quantum dots for sensitive detection of mercury ions and l-cysteine

RSC Advances ◽  
2019 ◽  
Vol 9 (57) ◽  
pp. 32977-32983 ◽  
Author(s):  
Yuang Mao ◽  
Chang Zhao ◽  
Shuyan Ge ◽  
Tao Luo ◽  
Jie Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Sensitive Detection ◽  
Mercury Ions ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
One Step

One-step and gram-scale synthesis of nitrogen doped graphene quantum dots is realized for their sensitive detection of Hg2+ and l-Cys.

scholarly journals One-Step Preparation of Nitrogen-Doped Graphene Quantum Dots With Anodic Electrochemiluminescence for Sensitive Detection of Hydrogen Peroxide and Glucose

2021 ◽  
Vol 9 ◽  
Author(s):  
Zheng Yanyan ◽  
Jing Lin ◽  
Liuhong Xie ◽  
Hongliang Tang ◽  
Kailong Wang ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Quantum Dots ◽  
Limit Of Detection ◽  
Hydrothermal Process ◽  
Graphene Quantum Dots ◽  
Sensitive Detection ◽  
Uniform Size ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
One Step

Simple and efficient synthesis of graphene quantum dots (GQDs) with anodic electrochemiluminescence (ECL) remains a great challenge. Herein, we present an anodic ECL-sensing platform based on nitrogen-doped GQDs (N-GQDs), which enables sensitive detection of hydrogen peroxide (H2O2) and glucose. N-GQDs are easily prepared using one-step molecular fusion between carbon precursor and a dopant in an alkaline hydrothermal process. The synthesis is simple, green, and has high production yield. The as-prepared N-GQDs exhibit a single graphene-layered structure, uniform size, and good crystalline. In the presence of H2O2, N-GQDs possess high anodic ECL activity owing to the functional hydrazide groups. With N-GQDs being ECL probes, sensitive detection of H2O2 in the range of 0.3–100.0 μM with a limit of detection or LOD of 63 nM is achieved. As the oxidation of glucose catalyzed by glucose oxidase (GOx) produces H2O2, sensitive detection of glucose is also realized in the range of 0.7–90.0 μM (LOD of 96 nM).

Tannin-based thin-film composite membranes integrated with nitrogen-doped graphene quantum dots for butanol dehydration through pervaporation

2021 ◽  
Vol 623 ◽  
pp. 119077
Author(s):  
Rumwald Leo G. Lecaros ◽  
Reincess E. Valbuena ◽  
Lemmuel L. Tayo ◽  
Wei-Song Hung ◽  
Chien-Chieh Hu ◽  
...  
Keyword(s):  
Thin Film ◽  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Composite Membranes ◽  
Film Composite ◽  
Nitrogen Doped ◽  
Thin Film Composite ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Sulfur and nitrogen-doped graphene quantum dots/PANI nanocomposites for supercapacitors

2021 ◽  
Author(s):  
Hemalatha Kuzhandaivel ◽  
Sornalatha Manickam ◽  
Suresh Kannan Balasingam ◽  
Manik Clinton Franklin ◽  
Hee-Je Kim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Charge Storage ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Supercapacitor Applications ◽  
Storage Properties

Sulfur and nitrogen-doped graphene quantum dots/polyaniline nanocomposites were synthesized and their electrochemical charge storage properties were tested for supercapacitor applications.

scholarly journals Nanocomposite of CuInS/ZnS and Nitrogen-Doped Graphene Quantum Dots for Cholesterol Sensing

ACS Omega ◽  
2021 ◽  
Vol 6 (3) ◽  
pp. 2167-2176
Author(s):  
Rania Adel ◽  
Shaker Ebrahim ◽  
Azza Shokry ◽  
Moataz Soliman ◽  
Marwa Khalil
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene
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