A facile and high-efficient approach to yellow emissive graphene quantum dots from graphene oxide

被引：51

作者：

Zhao, Yan ^{[1
,2
]}

Wu, Xiaolong ^{[1
,2
]}

Sun, Shan ^{[2
]}

Ma, Liling ^{[2
]}

Zhang, Ling ^{[2
]}

Lin, Hengwei ^{[2
]}

机构：

[1] Changchun Univ Sci & Technol, Sch Chem & Environm Engn, Changchun 130022, Jilin, Peoples R China

[2] Chinese Acad Sci, NIMTE, Key Lab Graphene Technol & Applicat Zhejiang Prov, Ningbo 315201, Zhejiang, Peoples R China

来源：

CARBON | 2017年 / 124卷

关键词：

CARBON DOTS; FLUORESCENCE PROPERTIES; HIGH-YIELD; GRAPHITE; PHOTOLUMINESCENCE; ENERGY; LUMINESCENCE; MECHANISM; DEVICES; STATE;

D O I：

10.1016/j.carbon.2017.09.011

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 facile and high-efficient approach for the preparation of graphene quantum dots (GQDs) is reported. With the assistance of KO2 in the hydrothermal cutting graphene oxide (GO), a conversion rate of similar to 35 wt % from GO to GQDs is achieved. The as-prepared GQDs display rarely observed yellow emissive photoluminescence with a respectable quantum yield of 8.9% in H2O. Moreover, the GQDs are further demonstrated to perform as a potential pH probe and bioimaging agent. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：342 / 347

页数：6

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