scholarly journals A sensitive fluorescent sensor for the detection of trace water in organic solvents based on carbon quantum dots with yellow fluorescence

RSC Advances ◽  
2018 ◽  
Vol 8 (65) ◽  
pp. 37028-37034 ◽  
Author(s):  
Jianfei Wei ◽  
Haikuo Li ◽  
Ye Yuan ◽  
Chenying Sun ◽  
Dan Hao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Water Content ◽  
Organic Solvents ◽  
Fluorescent Sensor ◽  
Carbon Quantum Dots ◽  
Yellow Fluorescence ◽  
Trace Water

A simple fluorescent sensor for water content based on carbon quantum dots with yellow fluorescence was first demonstrated.

A novel fluorescent sensor for water in organic solvents based on dynamic quenching of carbon quantum dots

2018 ◽  
Vol 42 (23) ◽  
pp. 18787-18793 ◽  
Author(s):  
Jianfei Wei ◽  
Ye Yuan ◽  
Haikuo Li ◽  
Dan Hao ◽  
Chenying Sun ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Organic Solvents ◽  
Fluorescent Sensor ◽  
Carbon Quantum Dots ◽  
Dynamic Quenching

A novel fluorescent sensor for water in organic solvents was proposed based on dynamic quenching of carbon quantum dots.

A green synthetic route for the surface-passivation of carbon dots as an effective multifunctional fluorescent sensor for the recognition and detection of toxic metal ions from aqueous solution

2019 ◽  
Vol 11 (4) ◽  
pp. 490-506 ◽  
Author(s):  
K. Radhakrishnan ◽  
P. Panneerselvam ◽  
M. Marieeswaran
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Carbon Dots ◽  
Surface Passivation ◽  
Fluorescent Sensor ◽  
Toxic Metal ◽  
Carbon Quantum Dots ◽  
Synthetic Route ◽  
One Pot ◽  
Hydrothermal Methods

In this work, a green synthetic route was used to create a number of surface passivated fluorescent carbon quantum dots, which are explored as promising sensing probes, via facile one-pot hydrothermal methods.

Potentiality of carbon quantum dots derived from chitin as a fluorescent sensor for detection of ClO−

2020 ◽  
Vol 157 ◽  
pp. 105111 ◽  
Author(s):  
Qiwen Jiang ◽  
Yi jing ◽  
Yeyan Ni ◽  
Ruoshi Gao ◽  
Pingyan Zhou
Keyword(s):  
Quantum Dots ◽  
Fluorescent Sensor ◽  
Carbon Quantum Dots

Cuttlefish ink-based N and S co-doped carbon quantum dots as fluorescent sensor for highly sensitive and selective para-nitrophenol detection

2021 ◽  
Author(s):  
Xiaotong Huang ◽  
Chunli Yang ◽  
Yingxin Chen ◽  
Zebin Zhu ◽  
Lihua Zhou
Keyword(s):  
Quantum Dots ◽  
Organic Synthesis ◽  
Fluorescent Sensor ◽  
Environmental Problems ◽  
Carbon Quantum Dots ◽  
Raw Material ◽  
Highly Sensitive ◽  
Co Doped

Para-nitrophenol (PNP) is an important raw material for organic synthesis and its extensive use has produced a series of environmental problems. Here, we develop a highly sensitive and selective fluorescent...

Preparation of carbon quantum dots with tunable photoluminescence by rapid laser passivation in ordinary organic solvents

2011 ◽  
Vol 47 (3) ◽  
pp. 932-934 ◽  
Author(s):  
Xiangyou Li ◽  
Hongqiang Wang ◽  
Yoshiki Shimizu ◽  
Alexander Pyatenko ◽  
Kenji Kawaguchi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Organic Solvents ◽  
Carbon Quantum Dots

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.

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