Abstract

Graphene oxide quantum dots (GOQDs) are usually prepared using expensive carbon precursors such as carbon nanotubes (CNT) or graphene under the strong acidic condition, which requires an additional purifying process. Here, we first develop a facile pulsed laser ablation in liquid (PLAL) technique for preparing GOQDs using earth-abundant and low-cost coal as a precursor. Only ethanol and coal are used to produce GOQDs with excellent optical properties. The prepared GOQDs exhibit excellent optoelectronic properties which can be successfully utilized in bioimaging applications.

Details

Title
Graphene Oxide Quantum Dots Derived from Coal for Bioimaging: Facile and Green Approach
Author
Kang Sukhyun 1 ; Kim Kang Min 2 ; jung Kyunghwan 2 ; Son, Yong 3 ; Mhin Sungwook 3   VIAFID ORCID Logo  ; Ryu Jeong Ho 4 ; Shim, Kwang Bo 5   VIAFID ORCID Logo  ; Lee, Byoungsoo 2 ; Han HyukSu 6   VIAFID ORCID Logo  ; Song Taeseup 7 

1  Korea Institute of Industrial Technology, Gangwond-do, Republic of Korea (GRID:grid.454135.2) (ISNI:0000 0000 9353 1134); Department of Materials Science and Engineering, Hanyang University, Seoul, South Korea (GRID:grid.49606.3d) (ISNI:0000 0001 1364 9317) 
2  Korea Institute of Industrial Technology, Gangwond-do, Republic of Korea (GRID:grid.454135.2) (ISNI:0000 0000 9353 1134) 
3  Korea Institute of Industrial Technology, Gyeonggi-do, Republic of Korea (GRID:grid.454135.2) (ISNI:0000 0000 9353 1134) 
4  Korea National University of Transportation 50 Daehak-ro, Department of Materials Science and Engineering, Chungju-si, Republic of Korea (GRID:grid.411661.5) (ISNI:0000 0000 9573 0030) 
5  Department of Materials Science and Engineering, Hanyang University, Seoul, South Korea (GRID:grid.49606.3d) (ISNI:0000 0001 1364 9317) 
6  Korea Institute of Industrial Technology, Gangwond-do, Republic of Korea (GRID:grid.454135.2) (ISNI:0000 0000 9353 1134); Hongik University, Department of Materials Science and Engineering, Sejong, South Korea (GRID:grid.412172.3) (ISNI:0000 0004 0532 6974) 
7  Hanyang University, Department of Energy Engineering, Seoul, South Korea (GRID:grid.49606.3d) (ISNI:0000 0001 1364 9317) 
Publication year
2019
Publication date
2019
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41598-018-37479-6
ProQuest document ID
2190075783
Copyright
© The Author(s) 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.