Synthesis of graphene quantum dots from organic dye for the biosensor application

서지정보

ㆍ발행기관 : 한국탄소학회 ㆍ수록지정보 : Carbon letters / 33권 / 4호
ㆍ저자명 : Qiuyan Li, Jinrun Fu, Weifeng Chen, Fatao Zhang, Jie Cao, Xiang Liu

목차

Synthesis of graphene quantum dots from organic dye for the biosensor application
Abstract
1 Introduction
2 Experimental section
2.1 Chemical reagents
2.2 The route for dealing with the polluted water
2.3 Characterizations
2.4 Selective detection of Al3+
3 Results and discussion
3.1 Structural characterization of GQDs.
3.2 The application of GQDs for detection of Al3+
4 Conclusion
Acknowledgements
References

영어 초록

How to effectively deal with the polluted water by the pollutant of organic dyes is the world problem. It is of great significance if the organic dyes in the polluted water can be directly turned into the useful materials through a facile approach. Herein, the water which contains the common organic dye, Reactive red 2 (RR2), has been chosen to be the model to synthesize graphene quantum dots (GQDs) by a facile route. The comprehensive characterizations, including TEM (HRTEM), XPS, Raman, PL and UV–Vis. spectra, have been performed to confirm the structures and explore the properties of the synthesized GQDs. Meanwhile, the excellent PL properties and low biotoxicity of the GQDs confer them with the potential applications in the biological fields. When the GQDs are excited by the wavelength of 360 nm, the maximum emission is achieved at 428 nm. It is well demonstrated that the synthesized GQDs are able to detect the Al3+ which causes multiple diseases, such as Parkinson, Alzheimer, kidney disease, and even cancer. The detection range is from 90 to 800 μM, which is different from the reported kinds of the literature. Therefore, this work not only provides an economical and environmental route on solving the universal problem from organic dyes, but also facilitates to advancing the synthesis and application of GQDs.

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