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

Bulletin of Materials Science

关键词: Graphite oxide;    graphene oxide;    magnetic stirring;    atomic force microscopy.;   

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

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.

【 授权许可】

CC BY