A single-step, electrochemical synthesis of nitrogen doped blue luminescent phosphorene quantum dots

2018 ◽  
Vol 54 (83) ◽  
pp. 11733-11736 ◽  
Author(s):  
Manila Ozhukil Valappil ◽  
Monika Ahlawat ◽  
Vijayamohanan K. Pillai ◽  
Subbiah Alwarappan
Keyword(s):  
Quantum Dots ◽  
Electrochemical Synthesis ◽  
Supporting Electrolyte ◽  
Single Step ◽  
Black Phosphorus ◽  
Electrochemical Preparation ◽  
Nitrogen Doped ◽  
One Step

A one-step electrochemical preparation of nitrogen doped, blue luminescent phosphorene quantum dots from black phosphorus using a nitrogen-laden solvent and supporting electrolyte.

Electrochemical synthesis of multicolor fluorescent N-doped graphene quantum dots as a ferric ion sensor and their application in bioimaging

2019 ◽  
Vol 7 (9) ◽  
pp. 1494-1502 ◽  
Author(s):  
Yang Fu ◽  
Guanyue Gao ◽  
Jinfang Zhi
Keyword(s):  
Quantum Dots ◽  
Electrochemical Synthesis ◽  
Graphene Quantum Dots ◽  
Ferric Ion ◽  
Facile Synthesis ◽  
Ion Sensor ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Graphite Rods

A novel electrochemical strategy for simple and facile synthesis of semicarbazide functionalized nitrogen-doped graphene quantum dots (N-GQDs) was reported, based on direct exfoliation and oxidation from graphite rods.

Highly luminescent nitrogen-doped carbon quantum dots as effective fluorescent probes for mercuric and iodide ions

2015 ◽  
Vol 3 (9) ◽  
pp. 1922-1928 ◽  
Author(s):  
Zi Li ◽  
Huijun Yu ◽  
Tong Bian ◽  
Yufei Zhao ◽  
Chao Zhou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Quenching ◽  
Fluorescent Probes ◽  
Hydrothermal Reaction ◽  
Carbon Quantum Dots ◽  
Iodide Ions ◽  
Nitrogen Doped ◽  
Recovery Processes ◽  
One Step ◽  
Nitrogen Doped Carbon

Nitrogen-doped carbon quantum dots (N-CQDs) prepared via a one-step hydrothermal reaction exhibited highly selective and sensitive detection of Hg2+ and I− through fluorescence quenching and recovery processes, respectively.

scholarly journals One-step and green synthesis of nitrogen-doped carbon quantum dots for multifunctional electronics

RSC Advances ◽  
2017 ◽  
Vol 7 (35) ◽  
pp. 21969-21973 ◽  
Author(s):  
Zhan Wang ◽  
Lijun Cao ◽  
Yamei Ding ◽  
Rui Shi ◽  
Xiangjing Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Green Synthesis ◽  
Carbon Quantum Dots ◽  
Limiting Behavior ◽  
Nitrogen Doped ◽  
Current Limiting ◽  
One Step ◽  
Nitrogen Doped Carbon

A facile one-step and green synthesis of nitrogen-doped CQDs has been developed, the N-doped CQD-based device exhibits multifunctional memory and current limiting behavior.

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).

scholarly journals Single step synthesis of (α-Fe2O3) hematite films by hydrothermal electrochemical deposition

RSC Advances ◽  
2015 ◽  
Vol 5 (21) ◽  
pp. 16082-16088 ◽  
Author(s):  
Ceren Yilmaz ◽  
Ugur Unal
Keyword(s):  
Electrochemical Deposition ◽  
Electrochemical Synthesis ◽  
Single Step ◽  
Hydrothermal Conditions ◽  
One Step

Growth of nanocrystalline α-Fe2O3 films can be realized in one step by conducting electrochemical synthesis under hydrothermal conditions.

Facile one-step synthesis and fluorescence performance study of nitrogen-doped carbon quantum dots

2021 ◽  
Vol 14 (02) ◽  
pp. 2150009
Author(s):  
Xu Huai ◽  
Weiwei Duan ◽  
Jiayu Li ◽  
Qin Zhang ◽  
Qian Dong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Nitrogen Concentration ◽  
Carbon Sources ◽  
Fluorescence Emission ◽  
Carbon Quantum Dots ◽  
Performance Study ◽  
Blue Fluorescence ◽  
Nitrogen Doped ◽  
One Step ◽  
Nitrogen Doped Carbon

A facile strategy is reported to synthesize nitrogen-doped carbon quantum dots (N-CQDs) with fluorescence emission by a one-step hydrothermal treatment under different temperatures with dicyanodiamide and citric acid as precursor materials of nitrogen and carbon sources, respectively. The as-produced N-CQDs display green or blue fluorescence under the ultraviolet lamp was controlled by the reaction temperature. Consequently, the as-prepared sample reacted at 200[Formula: see text]C (N-CQDs-200), within the range of 3 nm, exhibits blue fluorescence excited at 365 nm irradiation with the maximum quantum yield (QY) of ca. 30.6%. Moreover, the N-CQDs possess rich functional groups such as nitrous groups and multiple oxygenated groups, which result in a favorable solubility in most hydrophilic solvents. From the characterization and discussion of TEM, HRTEM, FT-IR, XPS, Raman and UV-Vis, it is illustrated that the fluorescence performance was largely related to the nanomorphology, nitrogen concentration, multi-surface emission sites and various forms of transitions derived from the nitrogen doping. With the excellent fluorescence performance and the favorable solubility in solvents, the products are potentially suitable for monitoring organics.

A Single-Step Electrochemical Synthesis of Luminescent WS2 Quantum Dots

2017 ◽  
Vol 23 (38) ◽  
pp. 9144-9148 ◽  
Author(s):  
Manila O. Valappil ◽  
Athira Anil ◽  
Manikoth Shaijumon ◽  
Vijayamohanan K. Pillai ◽  
Subbiah Alwarappan
Keyword(s):  
Quantum Dots ◽  
Electrochemical Synthesis ◽  
Single Step
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