Facile synthesis of graphene quantum dots from 3D graphene and their application for Fe3+ sensing

Owing to their small size, biocompatibility, unique and tunable photoluminescence, and physicochemical properties, graphene quantum dots (GQDs) are an emerging class of zero-dimensional materials promising a wide spectrum of novel applications in bio-imaging, optical, and electrochemical sensors, en...

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Bibliographic Details
Main Authors: Ananthanarayanan, Arundithi, Wang, Xuewan, Routh, Parimal, Sana, Barindra, Lim, Sierin, Li, Jun, Chen, Peng, Lim, Kok Hwa, Kim, Dong-Hwan
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2014
Subjects:
Online Access:https://hdl.handle.net/10356/102868
http://hdl.handle.net/10220/19199
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Institution: Nanyang Technological University
Language: English
Description
Summary:Owing to their small size, biocompatibility, unique and tunable photoluminescence, and physicochemical properties, graphene quantum dots (GQDs) are an emerging class of zero-dimensional materials promising a wide spectrum of novel applications in bio-imaging, optical, and electrochemical sensors, energy devices, and so forth. Their widespread use, however, is largely limited by the current lack of high yield synthesis methods of high-quality GQDs. In this contribution, a facile method to electrochemically exfoliate GQDs from three-dimensional graphene grown by chemical vapor deposition (CVD) is reported. Furthermore, the use of such GQDs for sensitive and specific detection of ferric ions is demonstrated.