scholarly journals Microwave growth and tunable photoluminescence of nitrogen-doped graphene and carbon nitride quantum dots

2019 ◽  
Vol 7 (18) ◽  
pp. 5468-5476 ◽  
Author(s):  
Siyong Gu ◽  
Chien-Te Hsieh ◽  
Yasser Ashraf Gandomi ◽  
Jeng-Kuei Chang ◽  
Ju Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Citric Acid ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Nitrogen Doped ◽  
Microwave Assisted ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Tunable photoluminescent nitrogen-doped graphene and graphitic carbon nitride (g-C3N4) quantum dots are synthesized via a facile solid-phase microwave-assisted (SPMA) technique utilizing the pyrolysis of citric acid and urea precursors.

scholarly journals Tailoring fluorescence emissions, quantum yields, and white light emitting from nitrogen-doped graphene and carbon nitride quantum dots

Nanoscale ◽  
2019 ◽  
Vol 11 (35) ◽  
pp. 16553-16561 ◽  
Author(s):  
Siyong Gu ◽  
Chien-Te Hsieh ◽  
Yasser Ashraf Gandomi ◽  
Jianlin Li ◽  
Xing Xing Yue ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Graphene Quantum Dots ◽  
Quantum Yields ◽  
Light Emitting ◽  
Nitrogen Doped ◽  
Microwave Assisted ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Highly fluorescent N-doped graphene quantum dots (NGQDs) and graphitic carbon nitride quantum dots (CNQDs, g-C3N4) were synthesized using a solid-phase microwave-assisted (SPMA) technique.

Graphene quantum dot-decorated carbon electrodes for energy storage in vanadium redox flow batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (14) ◽  
pp. 7834-7842 ◽  
Author(s):  
Michael C. Daugherty ◽  
Siyong Gu ◽  
Doug S. Aaron ◽  
Ryan E. Kelly ◽  
Yasser Ashraf Gandomi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Nitride ◽  
Solid Phase ◽  
Graphene Quantum Dots ◽  
Carbon Electrodes ◽  
Graphene Quantum Dot ◽  
Microwave Assisted ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Vanadium Redox

Nitrogen-doped graphene quantum dots (GQDs) and graphitic carbon nitride (g-C3N4) quantum dots are synthesized via a solid-phase microwave-assisted (SPMA) technique.

Nitrogen-doped graphene/graphitic carbon nitride with enhanced charge separation and two-electron-transferring reaction activity for boosting photocatalytic hydrogen peroxide production

2021 ◽  
Vol 5 (5) ◽  
pp. 1511-1520
Author(s):  
Muye Liu ◽  
Yue Wen ◽  
Luhua Lu ◽  
Ying Chen ◽  
Xiaocong Tian ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Carbon Nitride ◽  
High Surface ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Hydrogen Peroxide Production ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
High Surface Activity

Pyrrolic nitrogen-doped graphenes with high surface activity of selective catalysis boost the photocatalytic hydrogen peroxide production of graphitic carbon nitride.

scholarly journals Ultrafast ammonia-driven, microwave-assisted synthesis of nitrogen-doped graphene quantum dots and their optical properties

Nanophotonics ◽  
2017 ◽  
Vol 6 (1) ◽  
pp. 259-267 ◽  
Author(s):  
Binjie Zheng ◽  
Yuanfu Chen ◽  
Pingjian Li ◽  
Zegao Wang ◽  
Bingqiang Cao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Graphene Quantum Dots ◽  
Microwave Assisted Synthesis ◽  
Scale Production ◽  
Excitation Spectra ◽  
Nitrogen Doped ◽  
Microwave Assisted ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

AbstractFor the first time, a facile, ultrafast, ammonia-driven microwave-assisted synthesis of high-quality nitrogen-doped graphene quantum dots (NGQDs) at room temperature and atmospheric pressure is presented. This one-step method is very cheap, environment friendly, and suitable for large-scale production. The as-synthesized NGQDs consisting of one to three graphene monolayers exhibit highly crystalline quality with an average size of 5.3 nm. A new fluorescence (FL) emission peak at 390 nm is observed, which might be attributed to the doped nitrogen atoms into the GQDs. An interesting red-shift is observed by comparing the FL excitation spectra to the UV-visible absorption spectra. Based on the optical properties, the detailed Jablonski diagram representing the energy level structure of NGQDs is derived.

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