Full-colour carbon dots: from energy-efficient synthesis to concentration-dependent photoluminescence properties

2017 ◽  
Vol 53 (21) ◽  
pp. 3074-3077 ◽  
Author(s):  
Xun Meng ◽  
Qing Chang ◽  
Chaorui Xue ◽  
Jinlong Yang ◽  
Shengliang Hu
Keyword(s):  
Efficient Method ◽  
Carbon Dots ◽  
Energy Efficient ◽  
Large Scale ◽  
Fluorescence Emission ◽  
Efficient Synthesis ◽  
Photoluminescence Properties ◽  
Large Scale Synthesis ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

A facile and energy-efficient method is presented for the large-scale synthesis of fluorescent carbon dots whose fluorescence emission wavelengths shift gradually from 630 to 400 nm with reduction in their concentration.

Large-Scale Ultrasonic Fabrication of White Fluorescent Carbon Dots

2016 ◽  
Vol 55 (18) ◽  
pp. 5335-5341 ◽  
Author(s):  
Hui Dang ◽  
Li-Kai Huang ◽  
Yan Zhang ◽  
Cai-Feng Wang ◽  
Su Chen
Keyword(s):  
Carbon Dots ◽  
Large Scale ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Highly fluorescent carbon dots as novel theranostic agents for biomedical applications

Nanoscale ◽  
2021 ◽  
Author(s):  
Jiafeng Wan ◽  
Xiaoyuan Zhang ◽  
Kun Fu ◽  
Xin Zhang ◽  
Li Shang ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Biomedical Applications ◽  
Photoluminescence Properties ◽  
Physicochemical Features ◽  
Low Toxicity ◽  
Good Biocompatibility ◽  
Theranostic Agents ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

As an emerging fluorescent nanomaterial, carbon dots (CDs) exhibit many attractive physicochemical features, including excellent photoluminescence properties, good biocompatibility, low toxicity and the ability to maintain the unique properties of...

A facile large-scale microwave synthesis of highly fluorescent carbon dots from benzenediol isomers

2014 ◽  
Vol 2 (25) ◽  
pp. 5028-5035 ◽  
Author(s):  
Jun Wang ◽  
Changming Cheng ◽  
Ying Huang ◽  
Baozhan Zheng ◽  
Hongyan Yuan ◽  
...  
Keyword(s):  
Microwave Synthesis ◽  
Carbon Dots ◽  
Large Scale ◽  
Quantum Yields ◽  
Microwave Method ◽  
High Quantum ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Three different carbon dots with high quantum yields were prepared via microwave method within 2 min. The hydroquinone-derived CDs could easily penetrate cells in 30 min.

scholarly journals Stimuli responsive multicolour fluorescence emission in carbon nanodots and application in metal free hydrogen evolution from water

2021 ◽  
Author(s):  
Subir Paul ◽  
Arindam Banerjee
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Carbon Dots ◽  
Fluorescence Emission ◽  
Carbon Nanodots ◽  
Stimuli Responsive ◽  
Metal Free ◽  
Free Hydrogen ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Visible light sensitive stimuli responsive fluorescent carbon dots have been fabricated and utilized for metal free hydrogen evolution from water.

Efficient synthesis of highly fluorescent carbon dots by microreactor method and their application in Fe3+ ion detection

2017 ◽  
Vol 81 ◽  
pp. 213-223 ◽  
Author(s):  
Longshi Rao ◽  
Yong Tang ◽  
Zongtao Li ◽  
Xinrui Ding ◽  
Guanwei Liang ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Efficient Synthesis ◽  
Ion Detection ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Nitrogen-doped carbon dots from Hutai-8 grape skin and their application in Hg2+ detection

2020 ◽  
Vol 16 ◽  
Author(s):  
Pan Zhang ◽  
Shun-Sheng Zhao ◽  
JiaJia Wang ◽  
Xiang Rong Liu
Keyword(s):  
Heavy Metal ◽  
Carbon Source ◽  
Fluorescence Quenching ◽  
Hydrothermal Method ◽  
Water Samples ◽  
Carbon Dots ◽  
Mercury Ions ◽  
Grape Skin ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Background: In recent years, environmental pollution and heavy metal pollution caused by rapid urbanization and industrialization have become increasingly serious. Among them, mercury (II) ion (Hg2+) is one of the highly toxic heavy metal ions, and its pollution comes from various natural resources and human activities. Therefore, people attach great importance to the development of analytical methods for effective analysis and sensitive detection of Hg2+ . Objective: Using grape skin as a green and environmental friendly carbon source, to synthesize fluorescent carbon dots, and try to apply them to the detect the concentration of Hg2+ in water. Method: Using "Hutai No. 8" grape skin as carbon source, fluorescent carbon dots were synthesized by one-step hydrothermal method. Structure and fluorescent properties of the carbon dots were tested using TEM, XPS, XRD and other characterization instruments, and their utilization on detection of mercury ions in the actual water samples was explored. Results: The CDs had a particle size of about 4.8 nm and a spherical shape. There are N-H, C-N, C=O and other functional groups on the surface. It was found that Hg2+ has obvious fluorescence quenching effect on CDs, and thus CDs fluorescence quenching method to detect the concentration Hg2+ was established, and the detection limit is 3.7 μM, which could be applied to test the concentration of Hg2+ in water samples. Conclusion: Using grape skin as carbon source, fluorescent carbon dots were successfully synthesized by hydrothermal method. Carbon dots were used to detect mercury ions in water, and a method for detecting mercury ions in actual water samples was established.

Sign in / Sign up

Export Citation Format

Share Document