Enhancement in the fluorescence of graphene quantum dots by hydrazine hydrate reduction

被引：121

作者：

Feng, Yaqiang ^{[1
,3
]}

Zhao, Jinping ^{[1
]}

Yan, Xingbin ^{[1
,2
]}

Tang, Fuling ^{[3
]}

Xue, Qunji ^{[2
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, Lab Clean Energy Chem & Mat, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[3] Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Dept Mat Sci & Engn, Lanzhou 730050, Peoples R China

来源：

CARBON | 2014年 / 66卷

关键词：

CARBON DOTS; FABRICATION; AVENUE;

D O I：

10.1016/j.carbon.2013.09.008

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：

A simple and effective chemical method was reported to enhance the fluorescence of graphene quantum dots (GQDs). Specifically, water-soluble GQDs, prepared by solvothermal synthesis from graphene oxide, are chemically reduced by hydrazine hydrate to produce reduced GQDs (rGQDs). The results show that the hydrazine hydrate reduction not only decreases the O/C atomic ratio of GQDs, also changes the bonding type of N atoms. Such surface/edge chemical bond change of GQDs results in that as-made rGQDs exhibit more than two times fluorescence intensity as strong as that of the pristine GQDs. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：334 / 339

页数：6

共 31 条

[11] 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

[12] Superior Micro-Supercapacitors Based on Graphene Quantum Dots [J].

Liu, Wen-Wen ;

Feng, Ya-Qiang ;

Yan, Xing-Bin ;

Chen, Jiang-Tao ;

Xue, Qun-Ji .

ADVANCED FUNCTIONAL MATERIALS, 2013, 23 (33) :4111-4122

[13] Cutting sp2 clusters in graphene sheets into colloidal graphene quantum dots with strong green fluorescence [J].

Pan, Dengyu ;

Guo, Lei ;

Zhang, Jingchun ;

Xi, Chen ;

Xue, Qi ;

Huang, He ;

Li, Jinghui ;

Zhang, Zongwen ;

Yu, Weijun ;

Chen, Zhiwen ;

Li, Zhen ;

Wu, Minghong .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (08) :3314-3318

[14] Hydrothermal Route for Cutting Graphene Sheets into Blue-Luminescent Graphene Quantum Dots [J].

Pan, Dengyu ;

Zhang, Jingchun ;

Li, Zhen ;

Wu, Minghong .

ADVANCED MATERIALS, 2010, 22 (06) :734-+

[15] Chemical structures of hydrazine-treated graphene oxide and generation of aromatic nitrogen doping [J].

Park, Sungjin ;

Hu, Yichen ;

Hwang, Jin Ok ;

Lee, Eui-Sup ;

Casabianca, Leah B. ;

Cai, Weiwei ;

Potts, Jeffrey R. ;

Ha, Hyung-Wook ;

Chen, Shanshan ;

Oh, Junghoon ;

Kim, Sang Ouk ;

Kim, Yong-Hyun ;

Ishii, Yoshitaka ;

Ruoff, Rodney S. .

NATURE COMMUNICATIONS, 2012, 3

[16] Graphene Quantum Dots Derived from Carbon Fibers [J].

Peng, Juan ;

Gao, Wei ;

Gupta, Bipin Kumar ;

Liu, Zheng ;

Romero-Aburto, Rebeca ;

Ge, Liehui ;

Song, Li ;

Alemany, Lawrence B. ;

Zhan, Xiaobo ;

Gao, Guanhui ;

Vithayathil, Sajna Antony ;

Kaipparettu, Benny Abraham ;

Marti, Angel A. ;

Hayashi, Takuya ;

Zhu, Jun-Jie ;

Ajayan, Pulickel M. .

NANO LETTERS, 2012, 12 (02) :844-849

[17] Facile preparation and upconversion luminescence of graphene quantum dots [J].

Shen, Jianhua ;

Zhu, Yihua ;

Chen, Cheng ;

Yang, Xiaoling ;

Li, Chunzhong .

CHEMICAL COMMUNICATIONS, 2011, 47 (09) :2580-2582

[18] Dramatic Fluorescence Enhancement of Bare Carbon Dots through Facile Reduction Chemistry [J].

Shen, Ran ;

Song, Kai ;

Liu, Huarong ;

Li, Yuesheng ;

Liu, Hewen .

CHEMPHYSCHEM, 2012, 13 (15) :3549-3555

[19] Improvement of Photoluminescence of Graphene Quantum Dots with a Biocompatible Photochemical Reduction Pathway and Its Bioimaging Application [J].

Sun, Hanjun ;

Wu, Li ;

Gao, Nan ;

Ren, Jinsong ;

Qu, Xiaogang .

ACS APPLIED MATERIALS & INTERFACES, 2013, 5 (03) :1174-1179

[20] Quantum-sized carbon dots for bright and colorful photoluminescence [J].

Sun, Ya-Ping ;

Zhou, Bing ;

Lin, Yi ;

Wang, Wei ;

Fernando, K. A. Shiral ;

Pathak, Pankaj ;

Meziani, Mohammed Jaouad ;

Harruff, Barbara A. ;

Wang, Xin ;

Wang, Haifang ;

Luo, Pengju G. ;

Yang, Hua ;

Kose, Muhammet Erkan ;

Chen, Bailin ;

Veca, L. Monica ;

Xie, Su-Yuan .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (24) :7756-7757

← 1 2 3 4 →