NDLI: Tuning of graphene oxide composition by multiple oxidations for carbon dioxide storage and capture of toxic metals

Content Provider	Royal Society of Chemistry (RSC)
Author	Jankovský, Ondřej Nováček, Michal Fila, Vlastimil Pumera, Martin Klímová, Kateřina Luxa, Jan Sofer, Zdeněk Sedmidubský, David Lhotka, Miloslav Matějková, Stanislava
Copyright Year	2017
Abstract	Graphene oxide (GO) is a material used as a precursor for the synthesis of graphene and its derivatives. Chemical properties of graphene are strongly influenced by the chemical composition of the original GO. In this paper we would like to show that the amount as well as the type of functional groups can be significantly increased and controlled by multiple oxidations of GO. For this purpose we performed multiple oxidations using two chlorate methods (Staudenmaier and Hofmann) and a permanganate method (Hummers). The results show a possibility of tuning the composition of GO functionalities by multiple oxidations. The obtained results also show that the second and third subsequent reoxidation reactions significantly increase the amount of oxygen containing groups in GO, mainly carboxylic groups. The multiple oxidation of graphene oxide led to a significant increase of carbon storage capacity. The high concentration of oxygen functionalities led to an increase of sorption capacity by more than one order of magnitude.
Starting Page	2739
Ending Page	2748
Page Count	10
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	5
Issue Number	6
Journal	Journal of Materials Chemistry A
DOI	10.1039/c6ta03631g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	Hofmann Graphite oxide Graphene Chlorate Oxygen Carbon Sorption
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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