Aqueous colloids of graphene oxide nanosheets by exfoliation of graphite oxide without ultrasonication

. Aqueous colloids of graphene oxide nanosheets were produced from exfoliation of graphite oxide using a magnetic stirrer and heat treatment in the absence of ultrasonication. Laser particle measurements showed that the particle size distribution of graphite oxide dispersed in de-ionized water was s...

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Bibliographic Details
Published inBulletin of materials science Vol. 34; no. 1; pp. 25 - 28
Main Authors ZHANG, TIAN-YOU, ZHANG, DONG
Format Journal Article
LanguageEnglish
Published India Springer-Verlag 01.02.2011
Springer Nature B.V
Subjects
Chemistry and Materials Science
Colloids
Engineering
Exfoliation
Graphene
Graphite
Heat treatment
Materials Science
Nanocomposites
Nanomaterials
Nanostructure
Oxides
Particle size distribution
Thickness
Graphite oxide; graphene oxide; magnetic stirring; atomic force microscopy
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Summary:. Aqueous colloids of graphene oxide nanosheets were produced from exfoliation of graphite oxide using a magnetic stirrer and heat treatment in the absence of ultrasonication. Laser particle measurements showed that the particle size distribution of graphite oxide dispersed in de-ionized water was significantly influenced by treatment time indicating an increasing exfoliation level of graphite oxide. Atomic force microscopy (AFM) confirmed that single-layer graphene oxide nanosheets with a thickness of ~1 nm were obtained after 72 h of magnetic stirring and heat treatment. These findings provide a new methodology for preparation of single-layer graphene oxide nanosheet colloids.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0250-4707
0973-7669
DOI:10.1007/s12034-011-0048-x