Novel carbon quantum dots for fluorescent detection of phenol and insights into the mechanism

2018 ◽  
Vol 42 (14) ◽  
pp. 11485-11492 ◽  
Author(s):  
Hong Xue ◽  
Yang Yan ◽  
Yong Hou ◽  
Guanglan Li ◽  
Ce Hao
Keyword(s):  
Quantum Dots ◽  
Environmental Assessment ◽  
Water Environment ◽  
Carbon Quantum Dots ◽  
Fluorescent Detection ◽  
Assessment And Treatment

Phenol is considered as one of the most important pollutants in the water environment, and thus its detection plays a cardinal role in environmental assessment and treatment.

scholarly journals Facile Synthesis of Nitrogen-Doped Carbon Quantum Dots with Chitosan for Fluorescent Detection of Fe3+

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1731 ◽  
Author(s):  
Zhao ◽  
Wang ◽  
Zhao ◽  
Deng ◽  
Xia
Keyword(s):  
Quantum Dots ◽  
Fluorescent Sensor ◽  
Nitrogen Sources ◽  
Carbon Quantum Dots ◽  
Fluorescent Detection ◽  
Excitation Wavelength ◽  
Environmental Application ◽  
Quenching Effect ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

A facile, economical, and one-step hydrothermal method was used to prepare highly luminescent nitrogen-doped carbon quantum dots (N-CQDs) with chitosan as both carbon and nitrogen sources. The as-prepared N-CQDs have an average size of 2 nm and exhibit excitation wavelength-dependent fluorescence with a maximum excitation and emission at 330 and 410 nm, respectively. Furthermore, due to the effective quenching effect of Fe3+ ions, the prepared N-CQDs can be used as a fluorescent sensor for Fe3+ ion-sensitive detection with a detection limit of 0.15 μM. The selectivity experiments revealed that the fluorescent sensor is specific to Fe3+ even with interference by high concentrations of other metal ions. Most importantly, the N-CQD-based Fe3+ ion sensor can be successfully applied to the determination of Fe3+ in real water samples. With excellent sensitivity and selectivity, such stable and cheap carbon materials are potentially suitable for the monitoring of Fe3+ in environmental application.

Green one-step synthesis of carbon quantum dots from orange peel for fluorescent detection of Escherichia coli in milk

2021 ◽  
Vol 339 ◽  
pp. 127775
Author(s):  
Xuetao Hu ◽  
Yanxiao Li ◽  
Yiwei Xu ◽  
Ziyu Gan ◽  
Xiaobo Zou ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Quantum Dots ◽  
Orange Peel ◽  
Carbon Quantum Dots ◽  
Fluorescent Detection ◽  
One Step

The selective deprotonation of carbon quantum dots for fluorescent detection of phosphate and visualization of latent fingerprints

Nanoscale ◽  
2021 ◽  
Author(s):  
Li Yang ◽  
Qi Zhang ◽  
Ying Han ◽  
Hongjuan Li ◽  
Shiguo Sun ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Rapid Determination ◽  
Carbon Quantum Dots ◽  
Water Soluble ◽  
Fluorescent Detection ◽  
Latent Fingerprints ◽  
Fluorescent Sensing ◽  
Turn On ◽  
Sensing Platform

We developed a water-soluble, stable and selective “turn-on” fluorescent sensing platform based on carbon quantum dots (CQDs) for rapid determination of the phosphate (Pi) in aqueous solutions and visualization of...

Bioinspired carbon quantum dots for sensitive fluorescent detection of vitamin B12 in cell system

2018 ◽  
Vol 1032 ◽  
pp. 154-162 ◽  
Author(s):  
Mingqian Wang ◽  
Yajun Liu ◽  
Guohong Ren ◽  
Weigang Wang ◽  
Shishan Wu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Vitamin B12 ◽  
Carbon Quantum Dots ◽  
Cell System ◽  
Fluorescent Detection

“Turn-on” fluorescent detection of cyanide based on polyamine-functionalized carbon quantum dots

RSC Advances ◽  
2014 ◽  
Vol 4 (8) ◽  
pp. 3685-3689 ◽  
Author(s):  
Yongqiang Dong ◽  
Ruixue Wang ◽  
Wanrong Tian ◽  
Yuwu Chi ◽  
Guonan Chen
Keyword(s):  
Quantum Dots ◽  
Carbon Quantum Dots ◽  
Fluorescent Detection ◽  
Turn On
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