Blue luminescent graphene quantum dots and graphene oxide prepared by tuning the carbonization degree of citric acid

被引：1679

作者：

Dong, Yongqiang

Shao, Jingwei

Chen, Congqiang

Li, Hao

Wang, Ruixue

Chi, Yuwu ^{[1
]}

Lin, Xiaomei

Chen, Guonan

机构：

[1] Fuzhou Univ, MOE Key Lab Anal & Detect Technol Food Safety, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Fujian 350108, Peoples R China

来源：

CARBON | 2012年 / 50卷 / 12期

基金：

中国国家自然科学基金;

关键词：

BRIGHT;

D O I：

10.1016/j.carbon.2012.06.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An easy bottom-up method for the preparation of photoluminescent (PL) graphene quantum dots (GODs) and graphene oxide (GO) has been developed by tuning the carbonization degree of citric acid and dispersing the carbonized products into alkaline solutions. The GQDs are nanosheets similar to 15 nm in width, and 0.5-2.0 nm in thickness. They show a relatively strong (9.0%) PL quantum yield and an excitation-independent PL emission activity. In contrast, the GO nanostructures consist of sheets that are hundreds of nanometers in width and similar to 1 nm in height. They exhibit a relatively weak (2.2%) PL quantum yield and an excitation-dependent PL emission activity. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：4738 / 4743

页数：6

共 22 条

[1] Luminescent Carbon Nanodots: Emergent Nanolights [J].

Baker, Sheila N. ;

Baker, Gary A. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2010, 49 (38) :6726-6744

[2] One-step and high yield simultaneous preparation of single- and multi-layer graphene quantum dots from CX-72 carbon black [J].

Dong, Yongqiang ;

Chen, Congqiang ;

Zheng, Xinting ;

Gao, Lili ;

Cui, Zhiming ;

Yang, Hongbin ;

Guo, Chunxian ;

Chi, Yuwu ;

Li, Chang Ming .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (18) :8764-8766

[3] Blue Photoluminescence from Chemically Derived Graphene Oxide [J].

Eda, Goki ;

Lin, Yun-Yue ;

Mattevi, Cecilia ;

Yamaguchi, Hisato ;

Chen, Hsin-An ;

Chen, I-Sheng ;

Chen, Chun-Wei ;

Chhowalla, Manish .

ADVANCED MATERIALS, 2010, 22 (04) :505-+

[4] Phonon-Assisted Electroluminescence from Metallic Carbon Nanotubes and Graphene [J].

Essig, S. ;

Marquardt, C. W. ;

Vijayaraghavan, A. ;

Ganzhorn, M. ;

Dehm, S. ;

Hennrich, F. ;

Ou, F. ;

Green, A. A. ;

Sciascia, C. ;

Bonaccorso, F. ;

Bohnen, K-P. ;

von Loehneysen, H. ;

Kappes, M. M. ;

Ajayan, P. M. ;

Hersam, M. C. ;

Ferrari, A. C. ;

Krupke, R. .

NANO LETTERS, 2010, 10 (05) :1589-1594

[5] Brightly Fluorescent Single-Walled Carbon Nanotubes via an Oxygen-Excluding Surfactant Organization [J].

Ju, Sang-Yong ;

Kopcha, William P. ;

Papadimitrakopoulos, Fotios .

SCIENCE, 2009, 323 (5919) :1319-1323

[6] Chemically derived, ultrasmooth graphene nanoribbon semiconductors [J].

Li, Xiaolin ;

Wang, Xinran ;

Zhang, Li ;

Lee, Sangwon ;

Dai, Hongjie .

SCIENCE, 2008, 319 (5867) :1229-1232

[7] An Electrochemical Avenue to Green-Luminescent Graphene Quantum Dots as Potential Electron-Acceptors for Photovoltaics [J].

Li, Yan ;

Hu, Yue ;

Zhao, Yang ;

Shi, Gaoquan ;

Deng, Lier ;

Hou, Yanbing ;

Qu, Liangti .

ADVANCED MATERIALS, 2011, 23 (06) :776-+

[8] Bottom-Up Fabrication of Photoluminescent Graphene Quantum Dots with Uniform Morphology [J].

Liu, Ruili ;

Wu, Dongqing ;

Feng, Xinliang ;

Muellen, Klaus .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (39) :15221-15223

[9] PEGylated nanographene oxide for delivery of water-insoluble cancer drugs [J].

Liu, Zhuang ;

Robinson, Joshua T. ;

Sun, Xiaoming ;

Dai, Hongjie .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (33) :10876-+

[10] Graphene oxide as a chemically tunable platform for optical applications [J].

Loh, Kian Ping ;

Bao, Qiaoliang ;

Eda, Goki ;

Chhowalla, Manish .

NATURE CHEMISTRY, 2010, 2 (12) :1015-1024

← 1 2 3 →