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Issue 1, 2013
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One-step preparation of nitrogen-doped graphene quantum dots from oxidized debris of graphene oxide

Chaofan Hu,a  Yingliang Liu,*b  Yunhua Yang,a  Jianghu Cui,a  Zirong Huang,a  Yaling Wang,a  Lufeng Yang,a  Haibo Wang,a  Yong Xiaob  and  Jianhua Rong*c 
Author affiliations

* Corresponding authors

a Department of Chemistry, Jinan University, Guangzhou 510632, China

b College of Science, South China Agricultural University, Guangzhou 510642, China
E-mail: tliuyl@163.com
Fax: + 86 20 85221813
Tel: + 86 20 85280323

c Department of Material Science and Engineering, Jinan University, Guangzhou 510632, P.R. China
E-mail: trong@jnu.edu.cn
Tel: + 86 20 85222860

Abstract

Highly blue-luminescent nitrogen-doped graphene quantum dots (N-GQDs) are obtained by hydrothermal treatment of graphene oxide in the presence of ammonia. The yield of N-GQDs is about 8.7% in weight. A high quantum yield of maximum 24.6% at an excitation wavelength of 340 nm is achieved. They are applied for bioimaging of HeLa cells, and showed bright luminescence and excellent biocompatibility.

Graphical abstract: One-step preparation of nitrogen-doped graphene quantum dots from oxidized debris of graphene oxide

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Publication details

The article was received on 29 Sep 2012, accepted on 30 Oct 2012 and first published on 31 Oct 2012


Article type: Communication
DOI: 10.1039/C2TB00189F
Citation: J. Mater. Chem. B, 2013,1, 39-42
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    One-step preparation of nitrogen-doped graphene quantum dots from oxidized debris of graphene oxide

    C. Hu, Y. Liu, Y. Yang, J. Cui, Z. Huang, Y. Wang, L. Yang, H. Wang, Y. Xiao and J. Rong, J. Mater. Chem. B, 2013, 1, 39
    DOI: 10.1039/C2TB00189F

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